$ git clone -n https://src.fedoraproject.org/rpms/mlocate.git /var/lib/mock/f41-build-side-1-2765502-32049/root/chroot_tmpdir/scmroot/mlocate
Cloning into '/var/lib/mock/f41-build-side-1-2765502-32049/root/chroot_tmpdir/scmroot/mlocate'...
$ git fetch origin 7277dd5f59db126d1046a6aa5c4077a597dddddc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mlocate
 * [new ref]         7277dd5f59db126d1046a6aa5c4077a597dddddc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7277dd5 Obsoleted by plocate