$ git clone -n https://gitee.com/mgb01105731/ipa.git /var/lib/mock/dist-an23-build-503340-74843/root/chroot_tmpdir/scmroot/ipa
Cloning into '/var/lib/mock/dist-an23-build-503340-74843/root/chroot_tmpdir/scmroot/ipa'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/ipa
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 07a6510 Init upstream from 4.12.2