* commit '46613aaf7': (27 commits)
Incorporate review
Lint
Incorporate review bits
Pre-populate the unread_count column
Don't update the schema version
Use attr instead of a dict
Lint
Test that a mark_unread action updates the right counter when using a slave store
Remove debug logging
Test that a mark_unread action updates the right counter
Fix summary rotation
Log for invalid values of notif
Fix SQL
Fix schema update
Lint
Save the count of unread messages to event_push_summary
Actually act on mark_unread
Appease mypy
Lint
Use temporary prefixes as per the MSC
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