Hi, In the latest Moose when I export a model with source anchors they are not exported right. If I have a class referencing the sourceAnchor, the source anchor is exported one time as an element and one time as an attribute of the class instead of using a ref. To explicit the problem: testSourcesAnchorsAreNotDuplicatedAfterExport | model package tempFile importedModel | model := MooseModel new name: 'Model'. package := FAMIXPackage new name: 'Package'; mooseModel: model; yourself. FAMIXClass new name: 'Class'; container: package; sourceAnchor: (FAMIXSourceTextAnchor new source: 'some text'; mooseModel: model; yourself); mooseModel: model. tempFile := (FileSystem memory / 'export-test.mse') ensureCreateFile. model exportToMSEStream: tempFile writeStream. importedModel := MooseModel new importFromMSEStream: tempFile readStream. self assert: importedModel size equals: model size This test was added to Moose yesterday. The change of behavior was introduced with the <container> pragma. In the method FMRepositoryVisitor>>exportProperty:withAll:, the sourceAnchor property is now detected as a composite and the branch used to export the property is values do: [ :each | self exportElement: each ]. Before the introduction of the <container> pragma, the property was not a composite and the branch executed was: values do: [ :each | (self isPrimitiveTypeOrObject: each) ifTrue: [ printer referenceName: each name ] ifFalse: [ printer referenceNumber: (self indexOf: each) ]] I don't know the "composite" and "container" system of FAME enough to know how to correct this problem now. If someone knows the importer/exporter I would appreciate help with this one. https://github.com/moosetechnology/Moose/issues/1198 -- Cyril Ferlicot https://ferlicot.fr http://www.synectique.eu 2 rue Jacques Prévert 01, 59650 Villeneuve d'ascq France