fix branch selector on new issue page (#14194) (#14207)

fix #14185

Signed-off-by: a1012112796 <1012112796@qq.com>

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

Author: a1012112796

templates/repo/issue/branch_selector_field.tmpl

@@ -31,15 +31,15 @@
 				</div>
 			</div>
 		</div>
-		<div id="branch-list" class="scrolling menu reference-list-menu">
+		<div id="branch-list" class="scrolling menu reference-list-menu {{if not .Issue}}new-issue{{end}}">
 			{{if .Issue.Ref}}
 				<div class="item text small" data-id="" data-id-selector="#ref_selector"><strong><a href="#">{{$.i18n.Tr "repo.clear_ref"}}</a></strong></div>
 			{{end}}	
 			{{range .Branches}}
 				<div class="item" data-id="refs/heads/{{.}}" data-name="{{.}}" data-id-selector="#ref_selector">{{.}}</div>
 			{{end}}
 		</div>
-		<div id="tag-list" class="scrolling menu reference-list-menu" style="display: none">
+		<div id="tag-list" class="scrolling menu reference-list-menu {{if not .Issue}}new-issue{{end}}" style="display: none">
 			{{if .Issue.Ref}}
 				<div class="item text small" data-id="" data-id-selector="#ref_selector"><strong><a href="#">{{.i18n.Tr "repo.clear_ref"}}</a></strong></div>
 			{{end}}	

web_src/js/index.js

@@ -112,10 +112,15 @@ function initEditForm() {
 function initBranchSelector() {
   const $selectBranch = $('.ui.select-branch');
   const $branchMenu = $selectBranch.find('.reference-list-menu');
+  const $isNewIssue = $branchMenu.hasClass('new-issue');
   $branchMenu.find('.item:not(.no-select)').click(function () {
     const selectedValue = $(this).data('id');
     const editMode = $('#editing_mode').val();
     $($(this).data('id-selector')).val(selectedValue);
+    if ($isNewIssue) {
+      $selectBranch.find('.ui .branch-name').text($(this).data('name'));
+      return;
+    }
 
     if (editMode === 'true') {
       const form = $('#update_issueref_form');