Fix DirectoryTree.path no longer reacting to new values

Fixes Textualize#4208
davep · Feb 26, 2024 · 17ba516 · 17ba516
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Fixed `Sparkline` not working with data in a `deque` https://github.com/Textualize/textual/issues/3899
 - Tooltips are now cleared when the related widget is no longer under them https://github.com/Textualize/textual/issues/3045
 - Simplified tree-sitter highlight queries for HTML, which also seems to fix segfault issue https://github.com/Textualize/textual/pull/4195
+- Fixed `DirectoryTree.path` no longer reacting to new values https://github.com/Textualize/textual/issues/4208
 
 ## [0.52.1] - 2024-02-20
 

diff --git a/src/textual/widgets/_directory_tree.py b/src/textual/widgets/_directory_tree.py
@@ -332,6 +332,7 @@ async def watch_path(self) -> None:
         If the path is changed the directory tree will be repopulated using
         the new value as the root.
         """
+        self.reset_node(self.root, str(self.path), DirEntry(self.PATH(self.path)))
         await self.reload()
 
     def process_label(self, label: TextType) -> Text: