Undo doesn't work in multiple cases

[RareBreeds]

I was following this topic https://community.vcvrack.com/t/how-to-implement-undo-feature/17730 and tried out the Seq++ undo behavior and it doesn't seem to work correctly. I noticed a few issues in Seq++ and across other modules in the plugin.

• Any module that has a drop down menu does not undo the drop down menu state
• Whilst the Rec and Scroll buttons on Seq++ do undo, the Run button doesn't
• Seq++ insert note does seem to register as a event that can be undone as the action is named in the edit menu, but if you undo it doesn't update the display.

I'm using a builds from source on macOS plugin - d482868 Rack - v2.1.1

[squinkylabs]

Do you really think "run" should be undoable? Is there any module where "run" is undoable?

[squinkylabs]

btw, the dropdown does undo, but it doesn't readraw it's state after undo. I got a fix for that somewhere, @kockie69 is welcome to have it.

[squinkylabs]

Interesting log entry:

error getting module in undo
error getting module in undo

[squinkylabs]

I submitted some pull requests - one for the undo breaking in VCV 2.0, and the other to make the drop-downs undo correctly. So hopefully fixes will be coming soon.