Issue 490:  allowed_properties and allowed_properties_defs constraints (zz-property)
Source:  (, )
Nature:  Uncategorized
Severity: 
Summary: Summary: It seems to serve no purpose other than a boolean to determine if a property has been defined. Constraining property_types or property_modes make sense but not properties and property_defs

Resolution: 
Revised Text: 
Actions taken:
January 23, 1997: received issue
Discussion: 

End of Annotations:=====