T436508: Separating combinable and distinct case filters updated the filter set in preparation for T437183: Likely socks queue. As part of that feature work, 1. all filters were normalized to "filtering out" (ie. updating the "show cases w/o edits" filter to "hide cases w/o edits" and enabling that by default) and 2. the infochip was updated to denote the number of filters applied as opposed to the number of filters changed from the default. 1 maintains parity with existing functionality but 2 updated the behavior of the infochip count and CUs flagged that this behavior was unexpected and/or unclear.
We should decide if we want to keep the filter count infochip functionality as is (count of filters enabled) or if we want to try and support the original diff count functionality alongside the new queue views. The complexity comes from the queues being implemented, as those apply multiple filters by default (eg. sockpuppets queue applies 6 filters). It's not as clear what filters are/aren't being modified.