element-hq / element-hq/synapse
uploading cross-signing keys causes remote homeservers to re-sync your device list
Open
A-E2EE
A-Performance
T-Defect
z-p2
- Dominant language
- Python
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Description
This issue has been migrated from [#7142](https://github.com/matrix-org/synapse/issues/7142).
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Uploading the cross-signing keys causes a discontinuity in the stream_id sequence, so next time there is a device update, all the servers that you share a room with will need to do a complete resync of your device list.
I think the issue is that the x-signing-key upload bumps the stream id, but doesn't cause a device update edu.
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