diff --git a/poky/bitbake/lib/bb/tinfoil.py b/poky/bitbake/lib/bb/tinfoil.py
index 8c9b6b8..dccbe0e 100644
--- a/poky/bitbake/lib/bb/tinfoil.py
+++ b/poky/bitbake/lib/bb/tinfoil.py
@@ -117,15 +117,16 @@
 
     class TinfoilCookerCollectionAdapter:
         """ cooker.collection adapter """
-        def __init__(self, tinfoil):
+        def __init__(self, tinfoil, mc=''):
             self.tinfoil = tinfoil
+            self.mc = mc
         def get_file_appends(self, fn):
-            return self.tinfoil.get_file_appends(fn)
+            return self.tinfoil.get_file_appends(fn, self.mc)
         def __getattr__(self, name):
             if name == 'overlayed':
-                return self.tinfoil.get_overlayed_recipes()
+                return self.tinfoil.get_overlayed_recipes(self.mc)
             elif name == 'bbappends':
-                return self.tinfoil.run_command('getAllAppends')
+                return self.tinfoil.run_command('getAllAppends', self.mc)
             else:
                 raise AttributeError("%s instance has no attribute '%s'" % (self.__class__.__name__, name))
 
@@ -185,10 +186,11 @@
 
     def __init__(self, tinfoil):
         self.tinfoil = tinfoil
-        self.collection = self.TinfoilCookerCollectionAdapter(tinfoil)
+        self.multiconfigs = [''] + (tinfoil.config_data.getVar('BBMULTICONFIG') or '').split()
+        self.collections = {}
         self.recipecaches = {}
-        self.recipecaches[''] = self.TinfoilRecipeCacheAdapter(tinfoil)
-        for mc in (tinfoil.config_data.getVar('BBMULTICONFIG') or '').split():
+        for mc in self.multiconfigs:
+            self.collections[mc] = self.TinfoilCookerCollectionAdapter(tinfoil, mc)
             self.recipecaches[mc] = self.TinfoilRecipeCacheAdapter(tinfoil, mc)
         self._cache = {}
     def __getattr__(self, name):
@@ -492,11 +494,11 @@
             raise Exception('Not connected to server (did you call .prepare()?)')
         return self.server_connection.events.waitEvent(timeout)
 
-    def get_overlayed_recipes(self):
+    def get_overlayed_recipes(self, mc=''):
         """
         Find recipes which are overlayed (i.e. where recipes exist in multiple layers)
         """
-        return defaultdict(list, self.run_command('getOverlayedRecipes'))
+        return defaultdict(list, self.run_command('getOverlayedRecipes', mc))
 
     def get_skipped_recipes(self):
         """
@@ -534,11 +536,11 @@
                 raise bb.providers.NoProvider('Unable to find any recipe file matching "%s"' % pn)
         return best[3]
 
-    def get_file_appends(self, fn):
+    def get_file_appends(self, fn, mc=''):
         """
         Find the bbappends for a recipe file
         """
-        return self.run_command('getFileAppends', fn)
+        return self.run_command('getFileAppends', fn, mc)
 
     def all_recipes(self, mc='', sort=True):
         """