$ git clone -n https://src.fedoraproject.org/rpms/knot-resolver.git /var/lib/mock/epel8-build-59096796-6571039/root/chroot_tmpdir/scmroot/knot-resolver
Cloning into '/var/lib/mock/epel8-build-59096796-6571039/root/chroot_tmpdir/scmroot/knot-resolver'...
$ git fetch origin 492b1e34e0c91108540f17de73dffb230da80062:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/knot-resolver
 * [new ref]         492b1e34e0c91108540f17de73dffb230da80062 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 492b1e3 Release 5.7.5-1