Bug Report - V3.0.4 (Build 2468) - UNDO not working for MERGE actions

V3.0.4
Build 2468

1 x H3PC
1 x Playback Wing
1 x Programming Wing
1 x External Monitor
1 x WYSIWYG

UNDO seems to no longer work on MERGE actions!

Create a look.
Record 1 thru 4....
Undo.... and it works fine.

Create another look
record 1 thru 4
Change colour
Merge 1 thru 4
Undo.... and it doesn't undo the merged data.... try undoing repeatedly.. still no joy.

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