fix issue list branch link broken (#3061) (#3070)

Author: lunny

templates/repo/issue/list.tmpl

@@ -172,7 +172,7 @@
 					<a class="title has-emoji" href="{{$.Link}}/{{.Index}}">{{.Title}}</a>
 
 					{{if .Ref}}
-						<a class="ui label" href="{{$.RepoLink}}/src/commit/{{.Ref}}">{{.Ref}}</a>
+						<a class="ui label" href="{{$.RepoLink}}/src/branch/{{.Ref}}">{{.Ref}}</a>
 					{{end}}
 					{{range .Labels}}
 						<a class="ui label" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&state={{$.State}}&labels={{.ID}}&milestone={{$.MilestoneID}}&assignee={{$.AssigneeID}}" style="color: {{.ForegroundColor}}; background-color: {{.Color}}">{{.Name}}</a>