qt6.qtwayland: fix a crash issue with popup/submenus

pkgs/development/libraries/qt-6/modules/qtwayland.nix

···
       url = "https://code.qt.io/cgit/qt/qtwayland.git/patch/?id=6fe83f6076423068b652fa4fcb0b5adbd297f2a8";
       hash = "sha256-TlZozKezpYm90B9qFP9qv76asRdIt+5bq9E3GcmFiDc=";
     })
+    # Fix potential crash issues when some submenus are expanded
+    # https://codereview.qt-project.org/c/qt/qtwayland/+/519344/
+    (fetchpatch {
+      url = "https://code.qt.io/cgit/qt/qtwayland.git/patch/?id=aae65c885d8e38d8abc2959cded7b5e9e5fc88b3";
+      hash = "sha256-FD1VaiTgl9Z1y+5EDpWYShM1ULoFdET86FoFfqDmjyo=";
+    })
   ];
 }