$ git clone -n https://gitee.com/src-opencloudos-rpms/squashfs-tools.git /var/lib/mock/dist-oc9-build-45131-14591/root/chroot_tmpdir/scmroot/squashfs-tools
Cloning into '/var/lib/mock/dist-oc9-build-45131-14591/root/chroot_tmpdir/scmroot/squashfs-tools'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/squashfs-tools
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc6c481 import squashfs-tools-4.5.1-3.tl4