Verify that the parent node to be expanded is a Folder before trying to expand it.
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@ -564,7 +564,7 @@ class MasterFeedViewController: UITableViewController, UndoableCommandRunner {
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}
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}
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// It wasn't already visable, so expand its folder and try again
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// It wasn't already visable, so expand its folder and try again
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guard let parent = node.parent else {
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guard let parent = node.parent, parent.representedObject is Folder else {
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completion?()
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completion?()
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return
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return
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}
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}
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