$ git clone -n https://src.fedoraproject.org/rpms/perl-File-chmod.git /var/lib/mock/f45-build-23620-598/root/chroot_tmpdir/scmroot/perl-File-chmod
Cloning into '/var/lib/mock/f45-build-23620-598/root/chroot_tmpdir/scmroot/perl-File-chmod'...
$ git fetch origin 291847f4fa420f314ac0d32eb68c3e91f465fff7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-File-chmod
 * [new ref]         291847f4fa420f314ac0d32eb68c3e91f465fff7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 291847f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild