Merge pull request #2713 from davep/tree-node-label-change-should-refresh-the-tree

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## Unreleased
+
+### Fixed
+
+- Fixed setting `TreeNode.label` on an existing `Tree` node not immediately https://github.com/Textualize/textual/pull/2713
+
 ## [0.27.0] - 2023-06-01
 
 ### Fixed

src/textual/widgets/_tree.py

@@ -307,6 +307,7 @@ class TreeNode(Generic[TreeDataType]):
         self._updates += 1
         text_label = self._tree.process_label(label)
         self._label = text_label
+        self._tree.call_later(self._tree._refresh_node, self)
 
     def add(
         self,