When grouping tags, update tagged photos to prefer child.
When grouping tags, update tagged photos to prefer child.

I am also considering applying the opposite effect when ungrouping.
Should a photo with A.B get A when A and B are ungrouped? There are
some cases where the answer is yes, and others no, depending on the
reason you're ungrouping the tags. Whereas this change is non-
controversial and simply enforces the existing standard of adding
more specific tags to a photo.

voussoir/etiquette,voussoir/etiquette,voussoir/etiquette