Block Factory color change bug

What steps will reproduce the problem?
1. Select a color block from the toolbox and connect it to the factory block
2. Change the color value (e.g. to 1 or 23)

What is the expected output? What do you see instead?
I expect that the color of the block visualization (top right) changes and that 
the value is accepted by the color block itself. Instead I see the old (wrong) 
color for the block. Additionally, when I move the color block, the old value 
is back in place and the new value is still present on the workspace (just the 
number on the white workspace plane). The Language code also does not change. 

What browser are you using?
Ubuntu 12.04
Google Chrome Version 25.0.1364.172

best regards
Marc Wollenweber

Original issue reported on code.google.com by borntob...@googlemail.com on 26 Mar 2013 at 10:49

clarkyblade / blockly

Block Factory color change bug #129