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wlu: null pointer check
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wlu: applied Alex's patch for UDT publishing
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code change for Bug 361463 - Update the back links to guidance Practice in the editor
code change for Bug 361463 - Update the back links to guidance Practice in the editor
wlu: skip role mdofifies check
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wlu: grey out check box condition
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Alex: fix node icon in tree view for udt publishing
wlu: variability restriction for udt types
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wlu: collapse config view when current config changes
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wlu: prevent loading a xmldef file as a xmi file
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wlu: added _referenceQualifiers
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