$ git clone -n https://gitee.com/src-anolis-os/botan2.git /var/lib/mock/dist-an23.4-nde-build-484692-73984/root/chroot_tmpdir/scmroot/botan2
Cloning into '/var/lib/mock/dist-an23.4-nde-build-484692-73984/root/chroot_tmpdir/scmroot/botan2'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/botan2
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 41fa5d2 !2 [Feature] Add botan2 v2.19.3 Merge pull request !2 from NewStart/a23