uses edismax queries on query counts > 1 only

source/net/yacy/cora/federate/solr/connector/AbstractSolrConnector.java

@@ -465,7 +465,7 @@ public abstract class AbstractSolrConnector implements SolrConnector {
         params.setFacet(false);
         if (fields != null && fields.length > 0) params.setFields(fields);
         params.setIncludeScore(false);
-        if (count > 0) {
+        if (count > 1) {
             params.setParam("defType", "edismax");
             params.setParam(DisMaxParams.QF, CollectionSchema.text_t.getSolrFieldName() + "^1.0");
         }