Merge branch 'fix-intermission-mouse' into 'next'

Fix mouse being grabbed in intermission and cutscenes

See merge request !891

src/sdl/i_video.c

@@ -372,7 +372,9 @@ static boolean IgnoreMouse(void)
 		return false;
 	if (menuactive)
 		return !M_MouseNeeded();
-	if (paused || con_destlines || chat_on || gamestate != GS_LEVEL)
+	if (paused || con_destlines || chat_on)
+		return true;
+	if (gamestate != GS_LEVEL && gamestate != GS_INTERMISSION && gamestate != GS_CUTSCENE)
 		return true;
 	return false;
 }