$ git clone -n https://gitee.com/wenyuzifang/volume_key.git /var/lib/mock/dist-an23-build-486864-74383/root/chroot_tmpdir/scmroot/volume_key
Cloning into '/var/lib/mock/dist-an23-build-486864-74383/root/chroot_tmpdir/scmroot/volume_key'...
$ git fetch origin 975a21b38ad92cf4fea3ec8ccf17684193d30034:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/volume_key
 * [new ref]         975a21b38ad92cf4fea3ec8ccf17684193d30034 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 975a21b Update code from upstream