I updated the Conflict State Messages after discussions with James and @Mooeypoo. The corrected messages have been added to the Approved Text ticket, T149385, for QA purposes. But to make it easier for someone to update these now, I've pasted all the changed messages below.
Tooltips
===Experience vs. Registered/Unregistered tooltips===
[rollover for all Experience filter tags when the user has selected an Experience filter and the Unregistered filter (but not the Registered filter)]
Experience filters find only registered users, so this filter conflicts with the “Unregistered” filter.
[rollover for the Unregistered filter tag when the user has selected an Experience filter and the Unregistered filter (but not the Registered filter)]
This filter conflicts with the following Experience filter[s], which find[s] only registered users: “Filtername a” [, “Filtername b”, “Filtername c"]
===Logged Actions, !!~~Category Changes!!~~ or Wikidata vs. ORES tooltips===
[rollover for Logged Actions filter in conflict with an ORES filter]
This filter conflicts with one or more Contribution Quality or User Intent filters. Quality and Intent predictions are not available for logged actions.
[rollover for Wikidata Edits filter in conflict with an ORES filter]
This filter conflicts with one or more Contribution Quality or User Intent filters. Quality and Intent predictions are not available for Wikidata edits.
[rollover for Category Changes filter in conflict with an ORES filter][invalid. remove]
This filter conflicts with one or more Contribution Quality or User Intent filters. Quality and Intent predictions are not available for category changes.
[rollover for an ORES Quality filter in conflict with Logged Actions, Category Changes or Wikidata edits]
Contribution Quality predictions are not available for certain types of change, so this filter conflicts with the following Type of Change filters: "Filtername a"[, "Filtername b", "Filtername c"]
[rollover for an ORES Intent filter in conflict with Logged Actions, Category Changes or Wikidata edits]
User Intent predictions are not available for certain types of change, so this filter conflicts with the following Type of Change filters: "Filtername a"[, "Filtername b", "Filtername c"]
Minor Edits vs. Logged Actions, Category Changes, Page Creations or Wikidata
**[rollover for Logged Actions, Category Changes Page Creations !!~~or Wikidata!!~~ filter in conflict with Minor Edits]**
This Type of Change filter conflicts with the “Minor Edits” filter. Certain types of change cannot be designated as “minor.”
**[rollover for Minor edits in conflict with Logged Actions, Category Changes, Page Creations !!~~or Wikidata filter!!~~]**
Certain types of change cannot be designated as “minor,” so this filter conflicts with the following Type of Change filters: "Filtername a"[, "Filtername b", "Filtername c", "Filtername d"]
===Non-Minor Edits vs. Wikidata !!NEW!!
**[rollover for Wikidata filter AND the Non-Minor Edits filter when they are in conflict]**
On the Recent Changes page (only), all Wikidata edits are designated as “minor.” So the “Wikidata edits” filter conflicts with the “Non-minor edits” filter.
=Results Area Messages
[Experience vs. Unregistered message]
No results found because the search criteria are in conflict
The “Unregistered” filter is conflicting with one or more Experience filters, which find registered users only. The conflicting filters are marked in the Active Filters area, above.
[Logged Actions vs. any ORES filter message]
No results found because the search criteria are in conflict
The “Logged actions” filter is conflicting with one or more Contribution Quality or User Intent filters. Quality and Intent predictions are not available for logged actions. The conflicting filters are marked in the Active Filters area, above.
[Wikidata Edits vs. any ORES filter message]
No results found because the search criteria are in conflict
The “Wikidata” filter is conflicting with one or more Contribution Quality or User Intent filters. Quality and Intent predictions are not available for Wikidata edits. The conflicting filters are marked in the Active Filters area, above.
[Category Changes vs. any ORES filter message]
No results found because the search criteria are in conflict
The “Category changes” filter is conflicting with one or more Contribution Quality or User Intent filters. Quality and Intent predictions are not available for category changes. The conflicting filters are marked in the Active Filters area, above.
[Minor Edits vs. Logged Actions, Category Changes, Page Creations or Wikidata ]
No results found because the search criteria are in conflict
The “Minor edits” filter is conflicting with one or more Type of Change filters, because certain types of change cannot be designated as “minor.” The conflicting filters are marked in the Active Filters area, above.
[Non-Minor Edits vs. Wikidata] NEW
No results found because the search criteria are in conflict
On the Recent Changes page (only), all Wikidata edits are designated as “minor.” So the “Wikidata edits” filter conflicts with the “Non-minor edits” filter.
