For reconciling with tag_views table with the messages table.
For reconciling with tag_views table with the messages table. Can be used to fix data issues causes
by split brains or persistence ids running in multiple locations.
Should not be run at the same time as an application.
To support running in the same system as a journal the tag writers actor would need to be shared
and all the interleavings of the actor running at the same be considered.
API likely to change when a java/scaladsl is added.