$ git clone -n https://src.fedoraproject.org/rpms/scribus-generator.git /var/lib/mock/f45-build-35701-698/root/chroot_tmpdir/scmroot/scribus-generator
Cloning into '/var/lib/mock/f45-build-35701-698/root/chroot_tmpdir/scmroot/scribus-generator'...
$ git fetch origin 61d54fb429a41adfb058b44c44e160f19edaa472:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scribus-generator
 * [new ref]         61d54fb429a41adfb058b44c44e160f19edaa472 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 61d54fb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild