Claire 8f91e304a5
Fix spurious edits and require incoming edits to be explicitly marked as such (#17918)
* Change post text edit to not be considered significant if it's identical after reformatting

* We don't need to clear previous change information anymore

* Require status edits to be explicit, except for poll tallies

* Fix tests

* Add some tests

* Add poll-related tests

* Add HTML-formatting related tests
2022-04-06 21:01:02 +02:00
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