diff --git a/poky/bitbake/lib/bb/asyncrpc/serv.py b/poky/bitbake/lib/bb/asyncrpc/serv.py
index 5cf45f9..d2de489 100644
--- a/poky/bitbake/lib/bb/asyncrpc/serv.py
+++ b/poky/bitbake/lib/bb/asyncrpc/serv.py
@@ -42,7 +42,7 @@
 
             # Read protocol and version
             client_protocol = await self.reader.readline()
-            if client_protocol is None:
+            if not client_protocol:
                 return
 
             (client_proto_name, client_proto_version) = client_protocol.decode('utf-8').rstrip().split()
@@ -59,7 +59,7 @@
             # an empty line to signal the end of the headers
             while True:
                 line = await self.reader.readline()
-                if line is None:
+                if not line:
                     return
 
                 line = line.decode('utf-8').rstrip()
diff --git a/poky/bitbake/lib/bb/cooker.py b/poky/bitbake/lib/bb/cooker.py
index 32a529f..1da2f03 100644
--- a/poky/bitbake/lib/bb/cooker.py
+++ b/poky/bitbake/lib/bb/cooker.py
@@ -250,7 +250,7 @@
     def process_inotify_updates(self):
         for n in [self.confignotifier, self.notifier]:
             if n and n.check_events(timeout=0):
-                # read notified events and enqeue them
+                # read notified events and enqueue them
                 n.read_events()
                 n.process_events()
 
diff --git a/poky/bitbake/lib/bb/fetch2/git.py b/poky/bitbake/lib/bb/fetch2/git.py
index 17d4904..578edc5 100644
--- a/poky/bitbake/lib/bb/fetch2/git.py
+++ b/poky/bitbake/lib/bb/fetch2/git.py
@@ -243,7 +243,7 @@
             for name in ud.names:
                 ud.unresolvedrev[name] = 'HEAD'
 
-        ud.basecmd = d.getVar("FETCHCMD_git") or "git -c core.fsyncobjectfiles=0 -c gc.autoDetach=false -c core.pager=cat"
+        ud.basecmd = d.getVar("FETCHCMD_git") or "git -c gc.autoDetach=false -c core.pager=cat"
 
         write_tarballs = d.getVar("BB_GENERATE_MIRROR_TARBALLS") or "0"
         ud.write_tarballs = write_tarballs != "0" or ud.rebaseable
diff --git a/poky/bitbake/lib/bb/runqueue.py b/poky/bitbake/lib/bb/runqueue.py
index 48e2540..338d1fe 100644
--- a/poky/bitbake/lib/bb/runqueue.py
+++ b/poky/bitbake/lib/bb/runqueue.py
@@ -2256,7 +2256,7 @@
         if self.sq_deferred:
             deferred_tid = list(self.sq_deferred.keys())[0]
             blocking_tid = self.sq_deferred.pop(deferred_tid)
-            logger.warning("Runqeueue deadlocked on deferred tasks, forcing task %s blocked by %s" % (deferred_tid, blocking_tid))
+            logger.warning("Runqueue deadlocked on deferred tasks, forcing task %s blocked by %s" % (deferred_tid, blocking_tid))
             return True
 
         if self.failed_tids:
diff --git a/poky/bitbake/lib/bb/tests/fetch.py b/poky/bitbake/lib/bb/tests/fetch.py
index b4ed691..0af06e4 100644
--- a/poky/bitbake/lib/bb/tests/fetch.py
+++ b/poky/bitbake/lib/bb/tests/fetch.py
@@ -1331,12 +1331,14 @@
        "cvs://anoncvs:anonymous@cvs.handhelds.org/cvs;tag=V0-99-81;module=familiar/dist/ipkg" : ('cvs', 'cvs.handhelds.org', '/cvs', 'anoncvs', 'anonymous', collections.OrderedDict([('tag', 'V0-99-81'), ('module', 'familiar/dist/ipkg')])),
        "git://git.openembedded.org/bitbake;branch=@foo" : ('git', 'git.openembedded.org', '/bitbake', '', '', {'branch': '@foo'}),
        "file://somelocation;someparam=1": ('file', '', 'somelocation', '', '', {'someparam': '1'}),
+       r'git://s.o-me_ONE:!#$%^&*()-_={}[]\|:?,.<>~`@git.openembedded.org/bitbake;branch=main': ('git', 'git.openembedded.org', '/bitbake', 's.o-me_ONE', r'!#$%^&*()-_={}[]\|:?,.<>~`', {'branch': 'main'}),
     }
     # we require a pathname to encodeurl but users can still pass such urls to 
     # decodeurl and we need to handle them
     decodedata = datatable.copy()
     decodedata.update({
        "http://somesite.net;someparam=1": ('http', 'somesite.net', '/', '', '', {'someparam': '1'}),
+       "npmsw://some.registry.url;package=@pkg;version=latest": ('npmsw', 'some.registry.url', '/', '', '', {'package': '@pkg', 'version': 'latest'}),
     })
 
     def test_decodeurl(self):
@@ -1869,7 +1871,7 @@
         self.add_empty_file('bsub', cwd=smdir)
 
         self.git('submodule init', cwd=self.srcdir)
-        self.git('submodule add file://%s' % smdir, cwd=self.srcdir)
+        self.git('-c protocol.file.allow=always submodule add file://%s' % smdir, cwd=self.srcdir)
         self.git('submodule update', cwd=self.srcdir)
         self.git('commit -m submodule -a', cwd=self.srcdir)
 
@@ -1899,7 +1901,7 @@
         self.add_empty_file('bsub', cwd=smdir)
 
         self.git('submodule init', cwd=self.srcdir)
-        self.git('submodule add file://%s' % smdir, cwd=self.srcdir)
+        self.git('-c protocol.file.allow=always submodule add file://%s' % smdir, cwd=self.srcdir)
         self.git('submodule update', cwd=self.srcdir)
         self.git('commit -m submodule -a', cwd=self.srcdir)
 
diff --git a/poky/bitbake/lib/bb/utils.py b/poky/bitbake/lib/bb/utils.py
index e6e21e2..64a004d 100644
--- a/poky/bitbake/lib/bb/utils.py
+++ b/poky/bitbake/lib/bb/utils.py
@@ -547,7 +547,12 @@
     Return the hex string representation of the MD5 checksum of filename.
     """
     import hashlib
-    return _hasher(hashlib.new('MD5', usedforsecurity=False), filename)
+    try:
+        sig = hashlib.new('MD5', usedforsecurity=False)
+    except TypeError:
+        # Some configurations don't appear to support two arguments
+        sig = hashlib.new('MD5')
+    return _hasher(sig, filename)
 
 def sha256_file(filename):
     """
diff --git a/poky/bitbake/lib/bblayers/layerindex.py b/poky/bitbake/lib/bblayers/layerindex.py
index 0ac8fd2..ba91fac 100644
--- a/poky/bitbake/lib/bblayers/layerindex.py
+++ b/poky/bitbake/lib/bblayers/layerindex.py
@@ -49,6 +49,31 @@
             else:
                 logger.plain("Repository %s needs to be fetched" % url)
                 return subdir, layername, layerdir
+        elif os.path.exists(repodir) and branch:
+            """
+            If the repo is already cloned, ensure it is on the correct branch,
+            switching branches if necessary and possible.
+            """
+            base_cmd = ['git', '--git-dir=%s/.git' % repodir, '--work-tree=%s' % repodir]
+            cmd = base_cmd + ['branch']
+            completed_proc = subprocess.run(cmd, text=True, capture_output=True)
+            if completed_proc.returncode:
+                logger.error("Unable to validate repo %s (%s)" % (repodir, stderr))
+                return None, None, None
+            else:
+                if branch != completed_proc.stdout[2:-1]:
+                    cmd = base_cmd + ['status', '--short']
+                    completed_proc = subprocess.run(cmd, text=True, capture_output=True)
+                    if completed_proc.stdout.count('\n') != 0:
+                        logger.warning("There are uncommitted changes in repo %s" % repodir)
+                    cmd = base_cmd + ['checkout', branch]
+                    completed_proc = subprocess.run(cmd, text=True, capture_output=True)
+                    if completed_proc.returncode:
+                        # Could be due to original shallow clone on a different branch for example
+                        logger.error("Unable to automatically switch %s to desired branch '%s' (%s)"
+                                     % (repodir, branch, completed_proc.stderr))
+                        return None, None, None
+            return subdir, layername, layerdir
         elif os.path.exists(layerdir):
             return subdir, layername, layerdir
         else:
diff --git a/poky/bitbake/lib/ply/yacc.py b/poky/bitbake/lib/ply/yacc.py
index 767c4e4..381b50c 100644
--- a/poky/bitbake/lib/ply/yacc.py
+++ b/poky/bitbake/lib/ply/yacc.py
@@ -2798,7 +2798,14 @@
     def signature(self):
         try:
             import hashlib
+        except ImportError:
+            raise RuntimeError("Unable to import hashlib")
+        try:
             sig = hashlib.new('MD5', usedforsecurity=False)
+        except TypeError:
+            # Some configurations don't appear to support two arguments
+            sig = hashlib.new('MD5')
+        try:
             if self.start:
                 sig.update(self.start.encode('latin-1'))
             if self.prec: