If account validity is enabled in the server's configuration, this job will run at startup as a background job and will stick an expiration date to any registered account missing one.

Merge pull request #5187 from matrix-org/dbkr/only_check_threepid_not_in_use_if_actually_registering

Only check 3pids not in use when registering

Allow client event serialization to be async

Expose DataStore._get_events as get_events_as_list

Use correct config option for ratelimiting in tests

Co-Authored-By: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>

Co-Authored-By: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>

We checked that 3pids were not already in use before we checked if
we were going to return the account previously registered in the
same UI auth session, in which case the 3pids will definitely
be in use.

https://github.com/vector-im/riot-web/issues/9586

This is in preparation for reaction work which requires it.