Add a test that hits the new branch of code

Author: rbygrave

ebean-core/src/main/java/io/ebeaninternal/api/BindValuesKey.java

@@ -25,7 +25,7 @@ public BindValuesKey(SpiEbeanServer server) {
    */
   public BindValuesKey add(Object value) {
     if (value instanceof EntityBean) {
-      // Only interested in id to keep the memory footprint low
+      // only interested in id to keep the memory footprint low
       Object id = server.beanId(value);
       if (id != null) {
         value = id;
@@ -45,5 +45,4 @@ public int hashCode() {
     return values.hashCode();
   }
 
-
 }

ebean-test/src/test/java/org/tests/model/memleak/TestQueryCacheHoldsBean.java

@@ -23,4 +23,15 @@ void testQueryCacheHoldsBean() {
         .findOne();
     }
   }
+
+  @Test
+  void queryCacheHoldsBean() {
+    var query = DB.find(MemleakParent.class)
+      .where().eq("id", 989898)
+      .eq("child", DB.reference(MemleakChild.class, 4534535))
+      .setUseQueryCache(true);
+
+    query.findOne();
+    query.findOne();
+  }
 }