$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-PostgreSQL.git /var/lib/mock/f45-build-26814-619/root/chroot_tmpdir/scmroot/perl-Test-PostgreSQL
Cloning into '/var/lib/mock/f45-build-26814-619/root/chroot_tmpdir/scmroot/perl-Test-PostgreSQL'...
$ git fetch origin 64a1160a62e3b9413fa36947f4f9095b8daf54c0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-PostgreSQL
 * [new ref]         64a1160a62e3b9413fa36947f4f9095b8daf54c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64a1160 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild