Integrated: pr: only create backport branch once

[Erik Helin]

On Wed, 31 Mar 2021 13:57:33 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this patch that ensures that the `/backport` commit command will only create the backport commit (and corresponding branch) once. There is no need to try to do this multiple times, the cherry picking will result in the same result every time. If a user for some reasons issues the `/backport` command twice on a commit then this will now work.
> 
> Thanks,
> Erik

This pull request has now been integrated.

Changeset: 2ff465bc
Author:    Erik Helin <ehelin at openjdk.org>
URL:       https://git.openjdk.java.net/skara/commit/2ff465bc
Stats:     129 lines in 2 files changed: 79 ins; 18 del; 32 mod

pr: only create backport branch once

Reviewed-by: rwestberg

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PR: https://git.openjdk.java.net/skara/pull/1107