Escape issue titles in comments list (#17555)

Signed-off-by: Andrew Thornton <[email protected]>

Author: zeripath

templates/repo/issue/view_content/comments.tmpl

@@ -158,7 +158,7 @@
 			{{if eq .RefAction 3}}</del>{{end}}
 
 			<div class="detail">
-				<span class="text grey"><a href="{{.RefIssueHTMLURL}}"><b>{{.RefIssueTitle | Str2html}}</b> {{.RefIssueIdent | Str2html}}</a></span>
+				<span class="text grey"><a href="{{.RefIssueHTMLURL}}"><b>{{.RefIssueTitle}}</b> {{.RefIssueIdent}}</a></span>
 			</div>
 		</div>
 	{{else if eq .Type 4}}