fix pull view ui merge section (go-gitea#7335)

* fix pull view ui merge section

* fix tests

* fix tests

Author: lunny

integrations/pull_merge_test.go

@@ -159,7 +159,7 @@ func TestCantMergeWorkInProgress(t *testing.T) {
 		req := NewRequest(t, "GET", resp.Header().Get("Location"))
 		resp = session.MakeRequest(t, req, http.StatusOK)
 		htmlDoc := NewHTMLParser(t, resp.Body)
-		text := strings.TrimSpace(htmlDoc.doc.Find(".merge-section.segment > .text.grey").Text())
+		text := strings.TrimSpace(htmlDoc.doc.Find(".attached.header > .text.grey").Last().Text())
 		assert.NotEmpty(t, text, "Can't find WIP text")
 
 		// remove <strong /> from lang

templates/repo/issue/view_content/pull.tmpl

@@ -46,7 +46,7 @@
 	{{else}}red{{end}}"><span class="mega-octicon octicon-git-merge"></span></a>
 	<div class="content">
 		{{template "repo/pulls/status" .}}
-		<div class="ui attached merge-section segment">
+		<div class="ui {{if not $.LatestCommitStatus}}top attached header{{else}}attached merge-section segment{{end}}">
 			{{if .Issue.PullRequest.HasMerged}}
 				<div class="item text purple">
 					{{$.i18n.Tr "repo.pulls.has_merged"}}