$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Needs.git /var/lib/mock/f45-build-26764-619/root/chroot_tmpdir/scmroot/perl-Test-Needs
Cloning into '/var/lib/mock/f45-build-26764-619/root/chroot_tmpdir/scmroot/perl-Test-Needs'...
$ git fetch origin 60e0ac9f52294fc75406e37d338ca026d9a83f2b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Needs
 * [new ref]         60e0ac9f52294fc75406e37d338ca026d9a83f2b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 60e0ac9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild