b4 ty doesn't respect -b for prs

["Mark Brown" <broonie@kernel.org>]

[-- Attachment #1: Type: text/plain, Size: 656 bytes --]

Hi Konstantin,

When I run b4 ty to generate thank-you letters for a pull specifying -b
the program doesn't find the merge commit:

  $ b4 ty -b asoc-5.7 -s 2
  Generating 1 thank-you letters
  Could not get merge commit id for [GIT PULL] ASoC: tegra: Fixes for v5.7-rc3
  Was it actually merged?

however if I change to the branch it does:

  $ git checkout asoc-5.7
  Switched to branch 'asoc-5.7'
  $ b4 ty -b asoc-5.7 -s 2
  Generating 1 thank-you letters
  Writing: ./thierry_reding_gmail_com_git_pull_asoc_tegra_fixes_for_v5_7_rc3.thanks

(asoc-5.7 is for-5.7 in my sound tree, the merge commit is now published.)

Thanks,
Mark

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 499 bytes --]