diff --git a/templates/repo/issue/view_content/sidebar/branch_selector_field.tmpl b/templates/repo/issue/view_content/sidebar/branch_selector_field.tmpl
index 373be61026..d865a407aa 100644
--- a/templates/repo/issue/view_content/sidebar/branch_selector_field.tmpl
+++ b/templates/repo/issue/view_content/sidebar/branch_selector_field.tmpl
@@ -1,13 +1,14 @@
 {{if and (not .Issue.IsPull) (not .PageIsComparePull)}}
+{{$hasIssuesOrPullsWritePermission := and .HasIssuesOrPullsWritePermission (not .Repository.IsArchived)}}
 <input id="ref_selector" name="ref" type="hidden" value="{{.Reference}}">
-<input id="editing_mode" name="edit_mode" type="hidden" value="{{(or .IsIssueWriter .HasIssuesOrPullsWritePermission)}}">
+<input id="editing_mode" name="edit_mode" type="hidden" value="{{$hasIssuesOrPullsWritePermission}}">
 <form method="post" action="{{$.RepoLink}}/issues/{{.Issue.Index}}/ref" id="update_issueref_form">
 </form>
 {{/* TODO: share this branch selector dropdown with the same in repo page */}}
-<div class="ui {{if not .HasIssuesOrPullsWritePermission}}disabled{{end}} floating filter select-branch dropdown tw-max-w-full" data-no-results="{{ctx.Locale.Tr "repo.pulls.no_results"}}">
+<div class="ui {{if not $hasIssuesOrPullsWritePermission}}disabled{{end}} floating filter select-branch dropdown tw-max-w-full" data-no-results="{{ctx.Locale.Tr "repo.pulls.no_results"}}">
 	<div class="ui basic small button">
 		<span class="text branch-name gt-ellipsis">{{if .Reference}}{{$.RefEndName}}{{else}}{{ctx.Locale.Tr "repo.issues.no_ref"}}{{end}}</span>
-		{{if .HasIssuesOrPullsWritePermission}}{{svg "octicon-triangle-down" 14 "dropdown icon"}}{{end}}
+		{{if $hasIssuesOrPullsWritePermission}}{{svg "octicon-triangle-down" 14 "dropdown icon"}}{{end}}
 	</div>
 	<div class="menu">
 		<div class="ui icon search input">