$ git clone -n https://src.fedoraproject.org/rpms/knot-resolver.git /var/lib/mock/f38-build-side-42-init-devel-1282690-30671/root/chroot_tmpdir/scmroot/knot-resolver
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1282690-30671/root/chroot_tmpdir/scmroot/knot-resolver'...
$ git fetch origin 88c86a3369b19487c6c1c9ed2b39f03a365a66fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/knot-resolver
 * [new ref]         88c86a3369b19487c6c1c9ed2b39f03a365a66fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 88c86a3 Rebuild for Knot DNS 3.3