This is a request for a form of recent changes patrolling where only tagged changes would be marked as needing patrolled (outside new pages), as I suggested in T20670. This would be useful to determine if a tagged change has been dealt with or not, which cannot be achieved with the current implementation when RC patrolling is disabled. The native mediawiki patrolling feature seems to fit very well for this use - from a diff one can mark a change as patrolled and rollbacking marks a change as patrolled.
I've uploaded a patch that implements this. This requires RC patrolling enabled, then enabling tag patrolling limits RC patrol to tagged changes. A list of tags to ignore can be defined in the config, typically tags applied for information or research purposes (e.g. HHVM, visualeditor), not anti-vandalism.