YMultiDocUndoManager removeFromScope

[MaxTwentythree]

Hi,

we can dynamically add tracked types with addToScope.
How about removing them dynamically?

[dmonad]

Makes sense. Feel free to open a PR!

It's hard to envision how this would be used in practice. If you intend to make a PR, please also state how your PR would solve the problem and whether there might be other workarounds.