fix(super-editor): restore marks correctly after clear format + undo (SD-1771)#1967

harbournick merged 3 commits intomainsuperdoc-dev/superdoc:mainfrom

tadeu/sd-1771-formatting-undo-clear-formatting-leaves-mixed-formattingsuperdoc-dev/superdoc:tadeu/sd-1771-formatting-undo-clear-formatting-leaves-mixed-formattingCopy head branch name to clipboard