$ git clone -n https://src.fedoraproject.org/rpms/perl-MooX.git /var/lib/mock/f45-build-24969-607/root/chroot_tmpdir/scmroot/perl-MooX
Cloning into '/var/lib/mock/f45-build-24969-607/root/chroot_tmpdir/scmroot/perl-MooX'...
$ git fetch origin bbeed7af875e44f2b23c08ca75308120f223e3a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MooX
 * [new ref]         bbeed7af875e44f2b23c08ca75308120f223e3a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbeed7a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild