fix

Author: kerwin612

templates/repo/diff/file_tree_item.tmpl

@@ -18,7 +18,9 @@
 {{else}}
 	<div class="item-directory" title="{{.Name}}">
 		<!-- directory -->
-		{{svg "octicon-chevron-down"}}
+		{{svg "octicon-chevron-right" 16 "tw-hidden"}}
+		{{svg "octicon-chevron-down" 16}}
+		{{svg "octicon-file-directory-fill" 16 "text primary tw-hidden"}}
 		{{svg "octicon-file-directory-open-fill" 16 "text primary"}}
 		<span class="gt-ellipsis">{{.Name}}</span>
 	</div>

web_src/js/features/repo-diff-filetree.ts

@@ -51,6 +51,7 @@ export function initDiffFileTree() {
   for (const el of document.querySelectorAll<HTMLInputElement>('.file-tree-items .item-directory')) {
     el.addEventListener('click', () => {
       toggleElem(el.nextElementSibling);
+      toggleElem(el.querySelectorAll('.svg.octicon-chevron-right, .svg.octicon-chevron-down, .svg.octicon-file-directory-fill, .svg.octicon-file-directory-open-fill'));
     });
   }
 }