$ git clone -n https://gitee.com/mgb01105731/pki-core.git /var/lib/mock/dist-an23-build-505037-74854/root/chroot_tmpdir/scmroot/pki-core
Cloning into '/var/lib/mock/dist-an23-build-505037-74854/root/chroot_tmpdir/scmroot/pki-core'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/pki-core
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 69b9530 init