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If showOnScreenEdge is called, immediately followed by the client's destruction, it's possible that the next event queue process will call raiseClient with a destroyed client. We avoid this by using singleShot that is lifetime-aware.
1dbe3708
If showOnScreenEdge is called, immediately followed by the client's destruction, it's possible that the next event queue process will call raiseClient with a destroyed client. We avoid this by using singleShot that is lifetime-aware.