Added comment with context

Author: TalmizAhmed

bundles/af-core/src/main/java/com/adobe/cq/forms/core/components/util/AbstractOptionsFieldImpl.java

@@ -50,6 +50,11 @@ public abstract class AbstractOptionsFieldImpl extends AbstractFieldImpl impleme
     @Nullable
     protected String[] enumNames;
 
+    /**
+     * Default for single and multi-valued fields used the same 'default' crx property.
+     * This was not compatible with Universal Editor's Property Rail Configuration.
+     * Therefore adding this property as an additional way of defining default values.
+     **/
     @ValueMapValue(injectionStrategy = InjectionStrategy.OPTIONAL, name = ReservedProperties.PN_MULTI_DEFAULT_VALUES)
     @Nullable
     protected Object[] multiDefaultValues;