MySQL Bugs: #53883: Diagram Undo works across all diagrams, not selected one

Bug #53883	Diagram Undo works across all diagrams, not selected one
Submitted:	21 May 2010 13:14	Modified:	21 May 2010 14:00
Reporter:	Stephan Hodges	Email Updates:
Status:	Won't Fix	Impact on me:	None
Category:	MySQL Workbench: Modeling	Severity:	S3 (Non-critical)
Version:	5.2.21 RC	OS:	Any (Vista Ultimate 32 bit, Mac OS X)
Assigned to:		CPU Architecture:	Any

Description:
With multiple diagrams, selecting a diagram and then selecting the Undo menu item shows undo actions for different diagrams. This is unexpected behavior to say the least. 

Second, I had deleted the 2nd diagram before doing this, and was trying to undo some items in the first diagram as well.

How to repeat:
Make a diagram and put some tables. I had 12 visible tables.
Select all tables and do a Ctrl-C (copy command)
Start a new diagram, paste all the tables in there.
Auto arrange the old diagram (what I did, not sure it's important)
Auto arrange the new diagram

Do a couple of simple moves on new diagram. 
Save all
Delete entire (new) diagram.
Click the undo button. It will show actions for the new diagram.

I see similar problem on Mac OS X as well.

currently workbench has one global undo stack. we cant change that for 5.2 anymore, but we will try to improve that in a later version

Posted by developer:

This issue applies to the legacy MySQL Workbench 8.x implementation that is no longer supported or maintained.
MySQL Workbench 26.7 is a complete rewrite using a new technology stack and does not use the affected legacy implementation.
Therefore, this issue is not applicable to the current MySQL Workbench product and as such is closed.