Fix bug of branch/tag selector in the issue sidebar (#32744)

Fix: #32731

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Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

web_src/js/features/repo-issue-sidebar.ts

@@ -4,6 +4,7 @@ import {queryElems, toggleElem} from '../utils/dom.ts';
 import {initIssueSidebarComboList} from './repo-issue-sidebar-combolist.ts';
 
 function initBranchSelector() {
+  // TODO: RemoveIssueRef: see "repo/issue/branch_selector_field.tmpl"
   const elSelectBranch = document.querySelector('.ui.dropdown.select-branch');
   if (!elSelectBranch) return;