[FW][FIX]account_invoice_partial: recompute taxes when making percentage invoice

[fw-bot-adhoc]

Ticket: 55170

Forward-Port-Of: #141
Forward-Port-Of: #139

[roboadhoc]

Pull request status dashboard.

[fw-bot-adhoc]

@pablohmontenegro @zaoral cherrypicking of pull request #139 failed.

stdout:

On branch 16.0-13.0-h-55170-pam-ztK6-fw
You are currently cherry-picking commit 2d462064.
  (all conflicts fixed: run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

nothing to commit, working tree clean

stderr:

16:56:07.946861 git.c:439               trace: built-in: git cherry-pick 2d462064945a93ed944bb9cd1ebd27806c40a04e
16:56:07.949126 run-command.c:663       trace: run_command: git commit -n -F .git/MERGE_MSG --cleanup=verbatim --allow-empty-message
16:56:07.949743 git.c:439               trace: built-in: git commit -n -F .git/MERGE_MSG --cleanup=verbatim --allow-empty-message
The previous cherry-pick is now empty, possibly due to conflict resolution.
If you wish to commit it anyway, use:

    git commit --allow-empty

Otherwise, please use 'git cherry-pick --skip'
----------
status:

Either perform the forward-port manually (and push to this branch, proceeding as usual) or close this PR (maybe?).

In the former case, you may want to edit this PR message as well.