src/main/java/org/apache/sling/resourcemerger/impl/MergingResourceProvider.java (1 line):
	- line 229: // TODO Usually, the parent does not exist if the resource is a NonExistingResource. Ideally, this


src/main/java/org/apache/sling/resourcemerger/impl/CRUDMergingResourceProvider.java (1 line):
	- line 128: // TODO check parent hiding


src/main/java/org/apache/sling/resourcemerger/impl/picker/ResourceTypeHierarchyBasedResourcePicker.java (1 line):
	- line 57: // TODO this method can be optimised by leveraging relatedResource (similar to MergingResourcePicker)