$ git clone -n https://src.fedoraproject.org/rpms/gstreamer1-plugins-bad-free.git /var/lib/mock/f41-build-812275-147771/root/chroot_tmpdir/scmroot/gstreamer1-plugins-bad-free
Cloning into '/var/lib/mock/f41-build-812275-147771/root/chroot_tmpdir/scmroot/gstreamer1-plugins-bad-free'...
$ git fetch origin 7aff0ff6e9218f23ec9ab1ebfd6b27ff51832139:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gstreamer1-plugins-bad-free
 * [new ref]         7aff0ff6e9218f23ec9ab1ebfd6b27ff51832139 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7aff0ff Rebuild for svt-av1 2.1.0