It used to be like this, but in order to get the messages badge to show
in the correct circumstances, I had to know if the user had ever had
foreign messages before & I also needed euw_messages_ts even if those
messages had already been read.
Now that we're unconditionally showing messages, we no longer need these
0-value rows.
Bug: T127731
Change-Id: I1fc13bf0e5133ae39224f66d1b5a59c769bfcee2
This implements a backend layer and database storage for tracking what
wikis a user has unread notifications on. It is not yet exposed via any
API.
Whenever the notification counts on the local wiki are reset, a deferred
update is queued to also update the central database table.
Change-Id: Id1498bdeb5811d6848dc66781ffca03e726eab90
