OSATE's Xtext serializer unexpectedly fails when serializing a property constant created programmatically via the object model.
Expected and Current Behavior
A plugin and AADL project reproducing this issue is checked in here.
The AADL project contains a property set Property_Constant_Add_Test, which contains one type. When the plugin is run on this property set it adds a new property constant of this type.
When trying to serialize the modified property set, the serializer fails with a ConflictingFormattingException bearing the message "Conflicting values for 'space': ' ' and ''."