Fix Corners Not Removed When Maximised and in Fullscreen

src/manager/event_manager.ts

@@ -156,6 +156,10 @@ function applyEffectTo(actor: RoundedWindowActor) {
         handlers.onSizeChanged(actor);
     });
 
+    // Get notified about fullscreen explicitly, since a window must not change in
+    // size to go fullscreen
+    connect(actor.metaWindow, 'notify::fullscreen', () => handlers.onSizeChanged(actor));
+
     // Window focus changed.
     connect(actor.metaWindow, 'notify::appears-focused', () =>
         handlers.onFocusChanged(actor),

src/manager/utils.ts

@@ -282,7 +282,7 @@ export function shouldEnableEffect(
     const cfg = getRoundedCornersCfg(win);
     return (
         !(maximized || fullscreen) ||
-        (maximized && cfg.keepRoundedCorners.maximized) ||
+        (maximized && !fullscreen && cfg.keepRoundedCorners.maximized) ||
         (fullscreen && cfg.keepRoundedCorners.fullscreen)
     );
 }