From 70149ce8f979f18902c0dce1d4652cd4358fb225 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Csaba=20Gy=C3=B6rgyi?= <gycsaba96@gmail.com>
Date: Sun, 3 Nov 2024 11:54:39 +0100
Subject: [PATCH] Prevent reparenting a tag to itself

Sidebar.check_parent now checks if the drop target is the same
tag we are moving.
---
 GTG/gtk/browser/sidebar.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/GTG/gtk/browser/sidebar.py b/GTG/gtk/browser/sidebar.py
index 0830948b8..c0118a3f7 100644
--- a/GTG/gtk/browser/sidebar.py
+++ b/GTG/gtk/browser/sidebar.py
@@ -591,7 +591,10 @@ def drag_end(self, source, drag, unused):
 
 
     def check_parent(self, value, target) -> bool:
-        """Check to parenting a parent to its own children"""
+        """Check for parenting a tag to its own descendant or to itself."""
+
+        if value == target:
+            return False
 
         item = target
         while item.parent: