https://en.wikipedia.org/wiki/Michael_Lowry_%28actor%29?veaction=edit - removing the spaces before the reference at the end of the second paragraph leads to "
Could not start the review because your revision matches the latest version of this page.
" when you click "review my changes". If you instead tries to save, it will silently succeed in doing so - at which point it does not actually remove the spaces.
Version: unspecified
Severity: normal