#743 - Fix issue with ElasticSearch nested path query with multiple nested path expressions

src/main/java/com/avaje/ebeaninternal/server/expression/RawExpression.java

@@ -25,6 +25,11 @@ class RawExpression extends NonPrepareExpression {
     context.writeRaw(sql, values);
   }
 
+  @Override
+  public String nestedPath(BeanDescriptor<?> desc) {
+    return null;
+  }
+
   @Override
   public void containsMany(BeanDescriptor<?> desc, ManyWhereJoins manyWhereJoin) {