Last modified: 2013-06-20 16:14:35 UTC
Click "add template", then "apply changes" without adding a template (or add one, then remove it. Expected wikitext: none Actual wikitext: <span property="mw:PageProp/noindex" data-mw="{"parts":[]}"></span> We're clearly putting in a placeholder that we don't delete if the block is empty; because we don't display content blocks that don't render in read, you can't see these, which sucks and lets users do The Wrong Thing(tm).
*** This bug has been marked as a duplicate of bug 49831 ***