Blender Git Loki

Having come to understand the nature of bug #1576 a little better,
I can now say that I declared it fixed erroneously before, and
I hope that when I call it fixed now it can really, truly be laid
to rest.

Sometimes when you escape a transform on an object that is the
target of an IK constraint on an armature bone, the rotations were
not restored correctly on the bones in the IK chain. This commit
fixes this problem in a rather brute force manner.