$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-exporter4.git /var/lib/mock/f45-build-28270-629/root/chroot_tmpdir/scmroot/php-sebastian-exporter4
Cloning into '/var/lib/mock/f45-build-28270-629/root/chroot_tmpdir/scmroot/php-sebastian-exporter4'...
$ git fetch origin 8f39089d15e801d47df4d18c5cd46d1241e6fcec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-exporter4
 * [new ref]         8f39089d15e801d47df4d18c5cd46d1241e6fcec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f39089 v4.0.9