- query bug in solr: https://issues.apache.org/jira/browse/SOLR-5435

	_bag:data AND (rootProcessInstanceId:1 OR processInstanceId:1)

	is not the same as (watch the space after the first bracket)

	_bag:data AND ( rootProcessInstanceId:1 OR processInstanceId:1 )


	in case 1, rootProcessInstanceId is not seen as an index, but as regular value, together with 1

	=> parsed query:

		_bag:data AND ( all:rootProcessInstanceId all:1 OR processInstanceId:1 )


	fix: Catmandu::Store::Solr::Bag->delete_by_query:

		delete_by_query(query => "_bag:$name AND ($args{query})") => delete_by_query(query => "_bag:$name AND ( $args{query} )")

