There should be only a single OnEditEnabler that takes care of
enabling/disabling the save button. On each change of the full name we
created a new OnEditEnabler instance, each with a different original
value. Due to this changing the name from 'User' -> 'User Foo' ->
'User' was not possible, because the first OnEditEnabled with original
value 'User' disabled the save button.
Change-Id: I3f43fe1f17a577f78777bf44ff8be6685167df6a
Signed-off-by: Edwin Kempin <ekempin@google.com>
b826642c34