Edited events that get redacted show their content

[bwindels]

How to repro:

• turn on editing in labs if you haven't done so already.
• send a message (room can be in either encryption state)
• edit the message
• redact the message (the original message gets redacted, as it should. The edit doesn't get redacted yet by the server, see Aggregations: redacting an event should also redact all of its edits. matrix-org/matrix-spec#1328)
• turn off editing in labs and refresh
• behold:

On other clients present in the room with editing turned off, the original message appears correctly redacted without the content shown:

So seems like the client preserved state somehow.

Potentially related: #10006

[jryans]

Hmm, I can't seem to reproduce this (attempted in both room encryption states). I tried a fast local HS and also slow matrix.org HS. @bwindels, could you retest? Maybe it's been fixed by other changes?

[bwindels]

Will do!

[bwindels]

Indeed, can't repro anymore with the above steps.

[bwindels]

Found a way to repro this, you need two riot sessions:

1. open riot with session 1
2. send a message
3. edit it
4. redact it
5. send +10 messages to trigger a limited sync in session 2 later on
6. open riot with session 2, let it sync
7. the edited and then redacted message should now have its content visible through the redaction lozenge.