Here is a list of current limitations for undo/redo. I’ll keep this updated as item fixes or new problems are mentioned below in comments.
- highlight text, type braces or brackets, undo, and the text highlighting is also undone—just the typing should be undone and the highlighting should remain unless undo is invoked a 2nd time
- undoing edits (sometimes?) takes the user out of edit mode, but it should not
- highlight text, type three backticks, and undo typing one time—the three backticks at the front disappear, but only one of the end backticks disappear (two remain)