List tags for a certain branch

Hi everyone,

the question how to list tags, that point to commits contained in a 
certain branch came up on StackOverflow couple times, and this appears 
to be the only fast solution (example for local devel branch):

     git log --simplify-by-decoration --decorate --pretty=%d 
"refs/heads/devel" | fgrep 'tag: '

It would be much much simpler, if the tag command supporter an optional 
parameter to specify a branch:

     git tag --list --branch devel

It should result in something like:

Test-Tag1
Test-Tag2
Test-Tag3
Another-Tag
And-Another

... even if all three Test-Tag* tags point to the same commit!

What above mentioned git log-solution does in this situtation is:

  (HEAD, tag: Test-Tag1, tag: Test-Tag2, Test-Tag3, fork/devel, devel)
  (tag: Another-Tag)
  (tag: And-Another)


BTW: git describe FULL_HASH can't be used to return all tags that point 
to the given hash. The only workaround seems to be:

     git for-each-rev ref/tags | grep FULL_HASH


I hope you consider to add the proposed --branch option to a future git 
version. Thanks!

SO question that started the discussion:

http://stackoverflow.com/questions/32166548/how-to-list-all-tags-within-a-certain-git-branch

Best,
Cody