Index: release/scripts/animation_bake_constraints.py
===================================================================
--- release/scripts/animation_bake_constraints.py	(revision 18402)
+++ release/scripts/animation_bake_constraints.py	(working copy)
@@ -559,15 +559,21 @@
 ##      rdw: simplified by just duplicating armature. kept code as reference for creating armatures
 ##        disadvantage is that you cant have clone as stick and original as octahedron
 ##        since they share the same Armature. User can click Make Single User button.      
-##      if obType == ARMATURE: #build a copy from scratch
-##        myob= dupliArmature(ob)
-##      else:
-	Blender.Object.Duplicate() # Duplicate linked, including pose constraints.
-	myobs = Object.GetSelected() #duplicate is top on the list
-	myob = myobs[0]
-	if usrParent == False:
-		myob.clrParent(usrFreeze)     
-	debug(20,'=myob= was created as %s' % myob.getName())
+
+	# EAS: Current blender implementation (2.48a) 
+	# has problems with removing constraints from pose bones. Bug #18018
+	# Folowing code block reimplemented
+	if obType == ARMATURE: #build a copy from scratch
+		myob= dupliArmature(ob)
+	else:
+	# EAS: End of reiimplemented code.
+
+		Blender.Object.Duplicate() # Duplicate linked, including pose constraints.
+		myobs = Object.GetSelected() #duplicate is top on the list
+		myob = myobs[0]
+		if usrParent == False:
+			myob.clrParent(usrFreeze)     
+		debug(20,'=myob= was created as %s' % myob.getName())
 	return myob
 
 ########################################