Allow to process only tag (formatted) branch names

[irvnriir]

A little suggestion to use as default Please, allow no/empty output from the branch name, for ability to use this (\[(.|\n)*\]|#(?!\#)[A-z0-9_]+) regEx for gitPrefix.pattern .

[irvnriir]

(Its for automation . For manual selection its not required, as the function can be called only when the branch has a tag)

I've updated the code, basing on Git limitations to names .