Searching Values from Key-Value-Pairs with Tag Search possible?

[MuensterImagingNetwork]

I am woundering if it would be possible to add (optionally) the function to also search for values using omero.tagsearch.

We try to make our users to use key-value pairs more and more. A lot of information (values) is then duplicated and exists as value and a tag. The only reason to still use many of these tags and duplicate informations is tagsearch. If you can also search values (or, optionally, even keys) with tagsearch as usual, that would avoid duplicate tagging and would be a great enhancement.