Last modified: 2014-11-17 11:10:45 UTC
When an editor tried to remove a heading, the following empty h3 tag seems to have been left behind: <h3 data-parsoid='{"dsr":[4514,4534,3,3]}'></h3> Serializes to ===<nowiki/>=== and the user complained about it. From the bug report: /mng/bugs/en.2013-06-10T16:41:02.032Z-Lightning_(software) on parsoid.wmflabs.org
/mnt/bugs/2013-06-09T22%3A08%3A31.223Z-Sapo-comum (ptwiki) reports an empty heading left behind "== ==" when the user actually meant to delete it (and I presume thought it gone after the non-whitespace text was deleted).
/mnt/bugs/2013-06-10T13:57:10.670Z-%25E8%25A5%25BF%25E7%2593%259C%25E6%25B3%25A2 (chinese wikipedia) has an empty heading tag left behind as well (probably inserted when the user added a heading and then deleted it).
Change 162310 had a related patch set uploaded by Jforrester: MWHeading: Don't put self in output if contents are blank or whitespace https://gerrit.wikimedia.org/r/162310
*** Bug 70368 has been marked as a duplicate of this bug. ***