Cannot enable backups

[stefanceriu]

Community member reported that enabling backups doesn't work at all. Rageshake here https://github.com/element-hq/element-x-ios-rageshakes/issues/1259

2023-12-23T17:38:53.442376Z DEBUG matrix_sdk::http_client: Error while sending request: Api(Server(ClientApi(Error { status_code: 404, authenticate: None, body: Standard { kind: NotFound, message: "Account data not found" } }))) | crates/matrix-sdk/src/http_client/mod.rs:186 | spans: send{server_versions=[V1_0, V1_1, V1_2, V1_3, V1_4, V1_5] config=RequestConfig { timeout: 30s } request_id="REQ-0" method=GET uri="https://matrix-client.matrix.org/_matrix/client/v3/user/@bartleby0:matrix.org/account_data/m.secret_storage.default_key" status=404 response_size="58 B"}

They fixed the problem by resetting cross-signing from the web client.

[stefanceriu]

https://github.com/element-hq/element-x-ios-rageshakes/issues/1275

https://github.com/element-hq/element-x-ios-rageshakes/issues/1259

[stefanceriu]

While investigating this we noticed another occurence of matrix-org/matrix-rust-sdk#2998

[stefanceriu]

https://github.com/element-hq/element-x-ios-rageshakes/issues/1381

[stefanceriu]

Rageshake with steps to reproduce here https://github.com/element-hq/element-x-ios-rageshakes/issues/1384

[poljar]

This seems to be another instance of matrix-org/matrix-rust-sdk#2998. Two Client objects are racing to create a backup.

Things get slightly more borked than they should which will be fixed by matrix-org/matrix-rust-sdk#3105 but then you'll just create a backup you don't have access to.

[manuroe]

It should be fixed by now