$ git clone -n https://src.fedoraproject.org/rpms/perl-File-ShareDir-PAR.git /var/lib/mock/f45-build-23582-598/root/chroot_tmpdir/scmroot/perl-File-ShareDir-PAR
Cloning into '/var/lib/mock/f45-build-23582-598/root/chroot_tmpdir/scmroot/perl-File-ShareDir-PAR'...
$ git fetch origin 2538f7f39b870c008d0b3ed8680f314e0a021f41:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-File-ShareDir-PAR
 * [new ref]         2538f7f39b870c008d0b3ed8680f314e0a021f41 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2538f7f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild