Check future state before setting result in View

discord/ui/view.py

@@ -250,6 +250,7 @@ class View:
             self._timeout_handler = loop.call_later(self.timeout, self.dispatch_timeout)
 
     def dispatch_timeout(self):
+        if not self._stopped.done():
             self._stopped.set_result(True)
         asyncio.create_task(self.on_timeout(), name=f'discord-ui-view-timeout-{self.id}')
 
@@ -282,7 +283,9 @@ class View:
 
         This operation cannot be undone.
         """
+        if not self._stopped.done():
             self._stopped.set_result(False)
+
         if self._timeout_handler:
             self._timeout_handler.cancel()