$ git clone -n https://src.fedoraproject.org/rpms/perl-Dist-Zilla-Plugin-ModuleBuildTiny.git /var/lib/mock/f45-build-23236-596/root/chroot_tmpdir/scmroot/perl-Dist-Zilla-Plugin-ModuleBuildTiny
Cloning into '/var/lib/mock/f45-build-23236-596/root/chroot_tmpdir/scmroot/perl-Dist-Zilla-Plugin-ModuleBuildTiny'...
$ git fetch origin 39c90b83c7d2c6b8c2f9294470d107bc87f71813:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Dist-Zilla-Plugin-ModuleBuildTiny
 * [new ref]         39c90b83c7d2c6b8c2f9294470d107bc87f71813 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39c90b8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild