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* This happens when after changing DesktopTab to StatefulWidget, 1.2.7 and 1.3.0 have this problem. * When `addConnection` in server_model.dart is called, the old closed client is removed, the client parameter of buildConnectionCard is new, but client id inside Consumer is old. * The only state in cm page is timer, its value is kept in test. * There may be a better way to solve the ui update. Signed-off-by: 21pages <sunboeasy@gmail.com>