What steps will reproduce the problem? 1. Blockly > Demos > Code 2. Create a compound block such as an "if" with child nodes. 3. Collapse the block 4. Duplicate the block 5. Uncollapse the duplicate

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

Uncollapsing the duplicated block should appear the same as the original block before it was collapsed. The uncollapsed duplicate renders strangely and there is a "Connection already in database" error in the JS console. See attached screenshot.

What browser are you using?

OSX Chrome, OSX Safari.

Simplifying steps to just collapsing/duplicating/expanding a text length block with no connected child block.

Fixed, thanks! The repo and Blockly's demos have been updated. Blockly Games will be updated tomorrow (they have a 5 hour recompile).