$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-diff3.git /var/lib/mock/f45-build-28315-629/root/chroot_tmpdir/scmroot/php-sebastian-diff3
Cloning into '/var/lib/mock/f45-build-28315-629/root/chroot_tmpdir/scmroot/php-sebastian-diff3'...
$ git fetch origin 70f98bfa05605118cecb9f6098ebcb22ad88a2e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-diff3
 * [new ref]         70f98bfa05605118cecb9f6098ebcb22ad88a2e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 70f98bf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild