$ git clone -n https://src.fedoraproject.org/rpms/rust-drm-sys.git /var/lib/mock/f40-build-2656143-66913/root/chroot_tmpdir/scmroot/rust-drm-sys
Cloning into '/var/lib/mock/f40-build-2656143-66913/root/chroot_tmpdir/scmroot/rust-drm-sys'...
$ git fetch origin d5137fd7d28dd1e2add93a8eb3e98dbdb2dae398:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-drm-sys
 * [new ref]         d5137fd7d28dd1e2add93a8eb3e98dbdb2dae398 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d5137fd Update to 0.6.1; Fixes: RHBZ#2240196