#3173 - BeanSet lazy loading / Too many DataSource connections used

- The error reported was that a DataSource connection pool maxed out
- The symptom was that there was an additional lazy loading queries invoked via the hashCode/equals implementation of ManyToMany Set.
- The fix is for BeanSet init() to lazy load with onlyIds = false, that avoids the extra lazy loading query from being executed

ebean-api/src/main/java/io/ebean/common/BeanSet.java

@@ -136,7 +136,7 @@ public final class BeanSet<E> extends AbstractBeanCollection<E> implements Set<E
         if (disableLazyLoad) {
           set = new LinkedHashSet<>();
         } else {
-          lazyLoadCollection(true);
+          lazyLoadCollection(false);
         }
       }
     } finally {