$ git clone -n https://src.fedoraproject.org/rpms/gstreamer1-plugins-bad-free.git /var/lib/mock/f41-build-side-1-2672948-29214/root/chroot_tmpdir/scmroot/gstreamer1-plugins-bad-free
Cloning into '/var/lib/mock/f41-build-side-1-2672948-29214/root/chroot_tmpdir/scmroot/gstreamer1-plugins-bad-free'...
$ git fetch origin 55ba629e74bc591e461465ade256e2d10b731a1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gstreamer1-plugins-bad-free
 * [new ref]         55ba629e74bc591e461465ade256e2d10b731a1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 55ba629 Disable SVT-AV1 on RHEL