fixes #10215
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@ -582,7 +582,7 @@ export class VariablesDataSource implements tree.IDataSource {
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}
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let variable = <model.Variable>element;
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return variable.reference !== 0 && !strings.equalsIgnoreCase(variable.value, 'null');
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return variable.reference !== 0 && variable.value && !strings.equalsIgnoreCase(variable.value, 'null');
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}
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public getChildren(tree: tree.ITree, element: any): TPromise<any> {
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