$ git clone -n https://src.fedoraproject.org/rpms/os-prober.git /var/lib/mock/f40-build-2238918-53588/root/chroot_tmpdir/scmroot/os-prober
Cloning into '/var/lib/mock/f40-build-2238918-53588/root/chroot_tmpdir/scmroot/os-prober'...
$ git fetch origin 567fbf704bcea1ee9ee326b9209db84aa31c64fc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/os-prober
 * [new ref]         567fbf704bcea1ee9ee326b9209db84aa31c64fc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 567fbf7 Migrate to SPDX license