Possibility for choosing tags in \makeset

[Strauman]

One should be able to show/hide tags based on \makeset. E.g. \makeset[hide tags={tags,list}]{...}{...} or \makeset[only tags={tags,list}]{...}{...}

[thorstengrothe]

Maybe this is the same issue.

I have:

\nextproblem{tag={a,b}}
\begin{problem}
    Match only \buildtags{a,b}{myset}
\end{problem}

Here ist my test:

\buildtags{%
 a, --> match
 b, --> match
 a,b --> match
}{myset}

As you can see all three posibilities match. But only the last one

\buildtags{%
  a,b 
}{myset}

should match and show the problem, this way I can filter out problems with tags. Is this the same issue or a new feature request?

Regards
Thorsten