element-hq / element-hq/hydrogen-web
Room key with first_known_index of 3 was kept even if session backup now has the key with first_known_index of 0
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bug
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- TypeScript
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Description
At https://matrix.to/#/!DyDjYhlEIUnZQVzhDG:matrix.org/$1600950803310693oJInE:matrix.org?via=matrix.org the key was shared with first_known_index of 3, making the first 3 messages in that session undecryptable with error `UNKNOWN_MESSAGE_INDEX`.
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