Input text ([[mw:VisualEditor:What A]]):
test
what is '''this''' i don't ''even''
I copy and paste this text from [[mw:VisualEditor:What A]] to [[mw:VisualEditor:What B]] and I end up with largely the same result, except an invisible non-breaking space is inserted before "test". If you view the HTML page source of [[mw:VisualEditor:What B]], it's trivial to spot:
<span class="mw-headline" id=".C2.A0test"> test</span>
Version: unspecified
Severity: normal