Update "set" commands wiki page

[dave-kennedy]

At least one option is missing from the "set" commands page and that is oldundo.

I learned about this option in VIM-308. It isn't even mentioned in CHANGES.md.

[AlexPl292]

Hi, thank you for the info. Actually, this is supposed to be a hidden option in case of any issues with undo, but they are fixed now. Are you using the latest version of IdeaVim?

[dave-kennedy]

I'm running the version 1.11.1. Without nooldundo, I get the behavior exactly as described in VIM-308. i.e., undo requires an additional step. It seems like the cursor movement is part of the undo history.