From 9db6df1a56e79c13f942e29a28a607284bcd20ca Mon Sep 17 00:00:00 2001
From: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Date: Mon, 23 Dec 2024 11:49:12 +0100
Subject: [PATCH] iOS: remove registered undo/redo actions upon
 qiostextresponder dealloc
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QIOSTextResponder add actions to its own NSUndoManager. But
we need to remove those actions again when the responder is
deallocated, otherwise it can lead to a crash in UIKit when
swiping between apps.

Fixes: QTBUG-123843
Pick-to: 6.8 6.5 6.2
Change-Id: I404751bc50692a960e568ff2eb0f1754da0cec31
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
(cherry picked from commit 42f29da7a5b6c6969c169e9a868696a968ca930d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/plugins/platforms/ios/qiostextresponder.mm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/plugins/platforms/ios/qiostextresponder.mm b/src/plugins/platforms/ios/qiostextresponder.mm
index 5231a3addef..df07d8d6bf8 100644
--- a/src/plugins/platforms/ios/qiostextresponder.mm
+++ b/src/plugins/platforms/ios/qiostextresponder.mm
@@ -424,6 +424,7 @@
 {
     self.inputView = 0;
     self.inputAccessoryView = 0;
+    [self.undoManager removeAllActions];
 
     [super dealloc];
 }