From ea4adf1039609ea5193e7fae9930cc11e7aa84d6 Mon Sep 17 00:00:00 2001
From: daboe01 <daboe01@googlemail.com>
Date: Sun, 15 Mar 2026 17:08:21 +0100
Subject: [PATCH] fixed: racecondition in row expansion animation

---
 AppKit/CPOutlineView.j | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/AppKit/CPOutlineView.j b/AppKit/CPOutlineView.j
index 8b00173d3..25d28913f 100644
--- a/AppKit/CPOutlineView.j
+++ b/AppKit/CPOutlineView.j
@@ -786,6 +786,13 @@ var CPOutlineViewCoalesceSelectionNotificationStateOff  = 0,
 */
 - (void)reloadItem:(id)anItem reloadChildren:(BOOL)shouldReloadChildren
 {
+
+    if (_rowsAnimation && [_rowsAnimation isAnimating])
+    {
+        [_rowsAnimation stopAnimation];
+        [self animationDidEnd:_rowsAnimation];
+    }
+
     _pendingItemToClean = [];
     _itemAddedDuringLastLoading = [];