Way to return 'all tags which have some values`

[0ion9]

When running tmsu tags -u foo, the result returned is the name of every tag which uses value foo.

My suggestion is that tmsu tags -u with no value should be valid and should return every tag which has any value , in the same way that tmsu tags returns every tag. Being able to get the entire list instead of individual probing with -u foo would simplify tagging/querying wrappers somewhat.

[oniony]

Sounds reasonable.

I've not done any work on TMSU for a while. I have been exploring a rewrite (possibly in Rust) with clear separation between the core functionality (as a library) and the CLI (as an executable).