Unparenting cells make child cell change location

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What steps will reproduce the problem?
1. Drag and drop in 3 images
2. In the object editor, make two of the image cells to be children of the 
first. Note their location visually.
3. Remove one of the children from the hierarchy by making it a child of the 
environment cell. 

What is the expected output? What do you see instead?

Removed child should stay in place, yet no longer be a child of the original 
parent. Instead, the child's location jumps elsewhere in world.

Original issue reported on code.google.com by pympno...@gmail.com on 12 Jun 2012 at 12:59

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Ryan will re-test and monitor.

Original comment by pympno...@gmail.com on 19 Sep 2012 at 5:28