$ git clone -n https://src.fedoraproject.org/rpms/perl-Params-ValidationCompiler.git /var/lib/mock/f45-build-25649-612/root/chroot_tmpdir/scmroot/perl-Params-ValidationCompiler
Cloning into '/var/lib/mock/f45-build-25649-612/root/chroot_tmpdir/scmroot/perl-Params-ValidationCompiler'...
$ git fetch origin 544f62c81ec62ca57fc89b4714e2809ce42a7242:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Params-ValidationCompiler
 * [new ref]         544f62c81ec62ca57fc89b4714e2809ce42a7242 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 544f62c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild