Initial dump of component's properties:

14:51:01,799 DEBUG [ManagedComponentComponent] *** AFTER LOAD:
...
name=config-property, mappedName=managedConnectionFactoryProperties, viewUse=CONFIGURATION, required=false, value= MapCompositeMetaType

{java.util.Map items=[ name=foo type=java.lang.String], [name=foo.type type=java.lang.String], [name=foo.type.type type=java.lang.String]}:{foo.type=SimpleMetaType:java.lang.String:bl ah, foo=SimpleMetaType:java.lang.String:blah, foo.type.type=SimpleMetaType:java.lang.String:blah}
Items:
foo=SimpleMetaType:java.lang.String:blah
foo.type=SimpleMetaType:java.lang.String:blah
...

and after calling updateComponent():

14:51:01,799 DEBUG [ManagedComponentComponent] *** AFTER LOAD:
...
name=config-property, mappedName=managedConnectionFactoryProperties, viewUse=CONFIGURATION, required=false, value= MapCompositeMetaType{java.util.Map items=[name=foo type=java.lang.String], [name=foo.type type=java.lang.String], [name=foo.type.type type=java.lang.String]}

:

{foo.type=SimpleMetaType:java.lang.String:bl ah, foo=SimpleMetaType:java.lang.String:blah, foo.type.type=SimpleMetaType:java.lang.String:blah}

Items:
foo=SimpleMetaType:java.lang.String:blah
foo.type=SimpleMetaType:java.lang.String:blah
foo.type.type=SimpleMetaType:java.lang.String:blah
...

Note the extra foo.type.type item.