If I run Exiftool on the XMP sidecar for the affected file, I get… Subject : Colour, Entreprise, Fruit, Orange, Satsuma, Télécommunication … where the keyword Orange appears to be duplicated but, in fact, each token points to one of the three hierarchical contexts that include Orange. If I add all those hierarchies fully to an image, I get… To my mind, unselecting keywords from the middle of a hierarchy is something that should not be allowed and confuses other software. In short, there are still too many rough edges to make PL keywords any more than a basic function. It clearly shows in the keyword list which keywords are inherited and which are explicitly chosen. I hate to refer back to LrC again, but it is the gold standard for keywords. In addition to these problems, because the keyword list is built by reading files, any files ever seen without the proper structure of keywords in them will pollute the keyword list.Īlso, the keyword list allows me to untick C leaving D and E which is non-obvious on how it should behave, and in fact despite C remaining unticked, it still appears in the file after the metadata is written again. My actual example was much worse than that because I added what was effectively A > B > C > D > E and that yielded all of: But the Hierarchical subject got an extra animal|mammal|ungulate that was superfluous as it is inherent in the longer chain of animal|mammal|ungulate|giraffe. So those in the (non-hierarchical) Subject field behaved as I would expect with the additional keywords added and deduplicated. Hierarchical subject: animal|mammal|ungulate, animal|mammal|ungulate|giraffe The result was the following additional keywords in the file (the existing ones were untouched). I then added something like animal > mammal > ungulate > giraffe. Hierarchical subject: animal|mammal|cat|lion, Africa|Kenya|Nairobi Subject: animal, mammal, cat, lion, Africa, Kenya, Nairobi The original had something along these lines (totally invented for this example). I tried adding hierarchical keywords to an image I had already keyworded with LrC.
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