element-hq / element-hq/synapse
Replacing a cross-signing key (master, USK, SSK) doesn't delete the previously stored key
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A-E2EE
T-Defect
- Dominant language
- Python
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Description
This issue has been migrated from [#11970](https://github.com/matrix-org/synapse/issues/11970).
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Which leads to Synapse accruing useless hidden devices. We should delete the previously stored cross-signing key once a new one is successfully uploaded.
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