$ git clone -n https://src.fedoraproject.org/rpms/php-pear-Log.git /var/lib/mock/f40-build-2257778-54327/root/chroot_tmpdir/scmroot/php-pear-Log
Cloning into '/var/lib/mock/f40-build-2257778-54327/root/chroot_tmpdir/scmroot/php-pear-Log'...
$ git fetch origin 8f44d78d3886d2552f82b18cdb2e64552bbb161c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pear-Log
 * [new ref]         8f44d78d3886d2552f82b18cdb2e64552bbb161c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f44d78 deprecated