$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-ds2.git /var/lib/mock/f45-build-28050-627/root/chroot_tmpdir/scmroot/php-pecl-ds2
Cloning into '/var/lib/mock/f45-build-28050-627/root/chroot_tmpdir/scmroot/php-pecl-ds2'...
$ git fetch origin c891928aefac2e6a59b490cee5d28e20e2d3a35a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pecl-ds2
 * [new ref]         c891928aefac2e6a59b490cee5d28e20e2d3a35a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c891928 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild