$ git clone -n https://src.fedoraproject.org/rpms/sddm.git /var/lib/mock/f40-build-2408458-60559/root/chroot_tmpdir/scmroot/sddm
Cloning into '/var/lib/mock/f40-build-2408458-60559/root/chroot_tmpdir/scmroot/sddm'...
$ git fetch origin f681e854443c0036402bb9457d0b104db6553d8f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sddm
 * [new ref]         f681e854443c0036402bb9457d0b104db6553d8f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f681e85 Add patch to fix desktop file parsing