$ git clone -n https://src.fedoraproject.org/rpms/perl-File-LoadLines.git /var/lib/mock/f45-build-23592-598/root/chroot_tmpdir/scmroot/perl-File-LoadLines
Cloning into '/var/lib/mock/f45-build-23592-598/root/chroot_tmpdir/scmroot/perl-File-LoadLines'...
$ git fetch origin 1118caa64466c1a04fe005a6be53e130c2df5b6d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-File-LoadLines
 * [new ref]         1118caa64466c1a04fe005a6be53e130c2df5b6d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1118caa Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild