$ git clone -n https://src.fedoraproject.org/rpms/php-phpspec-prophecy.git /var/lib/mock/f42-build-59208752-6571875/root/chroot_tmpdir/scmroot/php-phpspec-prophecy
Cloning into '/var/lib/mock/f42-build-59208752-6571875/root/chroot_tmpdir/scmroot/php-phpspec-prophecy'...
$ git fetch origin 4e02ea1a8dfae2b8bcea0aefac34212a31c21476:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-phpspec-prophecy
 * [new ref]         4e02ea1a8dfae2b8bcea0aefac34212a31c21476 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e02ea1 update to 1.22.0