$ git clone -n https://gitee.com/src-opencloudos-rpms/gstreamer1-plugins-bad-free.git /var/lib/mock/dist-oc8-build-243612-83145/root/chroot_tmpdir/scmroot/gstreamer1-plugins-bad-free
Cloning into '/var/lib/mock/dist-oc8-build-243612-83145/root/chroot_tmpdir/scmroot/gstreamer1-plugins-bad-free'...
$ git fetch origin 50e0405af79cee4470c5992874b98cdcff1b650b:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gstreamer1-plugins-bad-free
 * [new ref]         50e0405af79cee4470c5992874b98cdcff1b650b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50e0405 import gstreamer1-plugins-bad-free-1.16.1-8.tl3