Merge pull request '修复bug 820' (#1159) from fix-820 into V20211228

Reviewed-on: https://git.openi.org.cn/OpenI/aiforge/pulls/1159
Reviewed-by: lewis <747342561@qq.com>

routers/repo/milestone.go

@@ -268,6 +268,7 @@ func MilestoneIssuesAndPulls(ctx *context.Context) {
 
 	ctx.Data["CanWriteIssues"] = ctx.Repo.CanWriteIssuesOrPulls(false)
 	ctx.Data["CanWritePulls"] = ctx.Repo.CanWriteIssuesOrPulls(true)
+	ctx.Data["PageIsIssueList"] = true
 
 	ctx.HTML(200, tplMilestoneIssues)
 }