I am trying to sync some metadata fields via NSFileProviderItem extendedAttributes and have been successful when using arbitrary tag names prefixed by "#S"
This is good but pretty much useless as those fields won't be indexed by Spotlight and won't be displayed in Finder
In order to have my fields displayed in Finder I am attempting to return the com.apple.metadata fields but they seem to be all systematically ignored with or without sync suffix.
This is really a big limitation and surprising given the fact that the tagData call works beautifully to synchronised keywords that are then populated in the extended attributes and indexed by Spotlight.
One more drop in the bucket of unanswered / undocumented questions in this forum ...
Thanks for any help.
