$ git clone -n https://src.fedoraproject.org/rpms/rust-gst-plugin-dav1d /var/lib/mock/f42-build-3428985-45391/root/chroot_tmpdir/scmroot/rust-gst-plugin-dav1d
Cloning into '/var/lib/mock/f42-build-3428985-45391/root/chroot_tmpdir/scmroot/rust-gst-plugin-dav1d'...
$ git fetch origin fbf9524c6235d69cabf1981eafe4fc25d89ae4a8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gst-plugin-dav1d
 * [new ref]         fbf9524c6235d69cabf1981eafe4fc25d89ae4a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fbf9524 Update to version 0.13.4; Fixes RHBZ#2333993