Some tags are grouped, such as species and artist and copyright; the system knows these things are special.
How hard would it be to rig the search so it automatically filters out any special tags that are NOT the one you typed in?
For example, if i do a search for "+fox"m the search would omit any pictures with species tags that are not 'fox' or aliased/implicated to 'fox'.
It could be useful if someone is looking for something extremely specific that's not a solo shot.
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