$ git clone -n https://src.fedoraproject.org/rpms/perl-Gtk3-SimpleList.git /var/lib/mock/f45-build-23853-599/root/chroot_tmpdir/scmroot/perl-Gtk3-SimpleList
Cloning into '/var/lib/mock/f45-build-23853-599/root/chroot_tmpdir/scmroot/perl-Gtk3-SimpleList'...
$ git fetch origin 9c96bcab3f5996e304afb63fd827293e7c34cc2a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Gtk3-SimpleList
 * [new ref]         9c96bcab3f5996e304afb63fd827293e7c34cc2a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9c96bca Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild