diff --git a/routers/web/repo/release.go b/routers/web/repo/release.go
index 19b83915afdfc..284fd27abf72b 100644
--- a/routers/web/repo/release.go
+++ b/routers/web/repo/release.go
@@ -295,6 +295,7 @@ func SingleRelease(ctx *context.Context) {
 	}
 
 	ctx.Data["PageIsSingleTag"] = release.IsTag
+	ctx.Data["SingleReleaseTagName"] = release.TagName
 	if release.IsTag {
 		ctx.Data["Title"] = release.TagName
 	} else {
diff --git a/routers/web/repo/search.go b/routers/web/repo/search.go
index c60301475f357..d589586dad6a8 100644
--- a/routers/web/repo/search.go
+++ b/routers/web/repo/search.go
@@ -70,7 +70,7 @@ func Search(ctx *context.Context) {
 		res, err := git.GrepSearch(ctx, ctx.Repo.GitRepo, prepareSearch.Keyword, git.GrepOptions{
 			ContextLineNumber: 1,
 			IsFuzzy:           prepareSearch.IsFuzzy,
-			RefName:           git.RefNameFromBranch(ctx.Repo.BranchName).String(), // BranchName should be default branch or the first existing branch
+			RefName:           git.RefNameFromBranch(ctx.Repo.Repository.DefaultBranch).String(), // BranchName should be default branch or the first existing branch
 			PathspecList:      indexSettingToGitGrepPathspecList(),
 		})
 		if err != nil {
diff --git a/routers/web/web.go b/routers/web/web.go
index 1fc5bc6545103..1f72beadac306 100644
--- a/routers/web/web.go
+++ b/routers/web/web.go
@@ -1592,7 +1592,7 @@ func registerRoutes(m *web.Router) {
 		m.Get("/watchers", repo.Watchers)
 		m.Get("/search", reqUnitCodeReader, repo.Search)
 		m.Post("/action/{action}", reqSignIn, repo.Action)
-	}, optSignIn, context.RepoAssignment, context.RepoRef())
+	}, optSignIn, context.RepoAssignment)
 
 	common.AddOwnerRepoGitLFSRoutes(m, optSignInIgnoreCsrf, lfsServerEnabled) // "/{username}/{reponame}/{lfs-paths}": git-lfs support
 
diff --git a/services/context/repo.go b/services/context/repo.go
index 6c348b99cbfab..ef54b9cee88c7 100644
--- a/services/context/repo.go
+++ b/services/context/repo.go
@@ -56,7 +56,6 @@ type Repository struct {
 	// RefFullName is the full ref name that the user is viewing
 	RefFullName git.RefName
 	BranchName  string // it is the RefFullName's short name if its type is "branch"
-	TagName     string // it is the RefFullName's short name if its type is "tag"
 	TreePath    string
 
 	// Commit it is always set to the commit for the branch or tag, or just the commit that the user is viewing
@@ -851,7 +850,6 @@ func RepoRefByType(detectRefType git.RefType) func(*Context) {
 				ctx.Repo.CommitID = ctx.Repo.Commit.ID.String()
 			} else if refType == git.RefTypeTag && ctx.Repo.GitRepo.IsTagExist(refShortName) {
 				ctx.Repo.RefFullName = git.RefNameFromTag(refShortName)
-				ctx.Repo.TagName = refShortName
 
 				ctx.Repo.Commit, err = ctx.Repo.GitRepo.GetTagCommit(refShortName)
 				if err != nil {
@@ -901,8 +899,6 @@ func RepoRefByType(detectRefType git.RefType) func(*Context) {
 
 		ctx.Data["BranchName"] = ctx.Repo.BranchName
 
-		ctx.Data["TagName"] = ctx.Repo.TagName
-
 		ctx.Data["CommitID"] = ctx.Repo.CommitID
 
 		ctx.Data["CanCreateBranch"] = ctx.Repo.CanCreateBranch() // only used by the branch selector dropdown: AllowCreateNewRef
diff --git a/templates/repo/release_tag_header.tmpl b/templates/repo/release_tag_header.tmpl
index f96c76864f163..fb17cf44c43da 100644
--- a/templates/repo/release_tag_header.tmpl
+++ b/templates/repo/release_tag_header.tmpl
@@ -17,7 +17,7 @@
 			</a>
 		{{end}}
 		{{if and (not .PageIsTagList) .CanCreateRelease}}
-			<a class="ui small primary button" href="{{$.RepoLink}}/releases/new{{if .PageIsSingleTag}}?tag={{.TagName}}{{end}}">
+			<a class="ui small primary button" href="{{$.RepoLink}}/releases/new{{if .PageIsSingleTag}}?tag={{.SingleReleaseTagName}}{{end}}">
 				{{ctx.Locale.Tr "repo.release.new_release"}}
 			</a>
 		{{end}}
diff --git a/tests/integration/release_test.go b/tests/integration/release_test.go
index d3c4ed6a83eda..1a7f9e38b5173 100644
--- a/tests/integration/release_test.go
+++ b/tests/integration/release_test.go
@@ -173,17 +173,25 @@ func TestViewReleaseListNoLogin(t *testing.T) {
 	}, commitsToMain)
 }
 
-func TestViewSingleReleaseNoLogin(t *testing.T) {
+func TestViewSingleRelease(t *testing.T) {
 	defer tests.PrepareTestEnv(t)()
 
-	req := NewRequest(t, "GET", "/user2/repo-release/releases/tag/v1.0")
-	resp := MakeRequest(t, req, http.StatusOK)
-
-	htmlDoc := NewHTMLParser(t, resp.Body)
-	// check the "number of commits to main since this release"
-	releaseList := htmlDoc.doc.Find("#release-list .ahead > a")
-	assert.EqualValues(t, 1, releaseList.Length())
-	assert.EqualValues(t, "3 commits", releaseList.First().Text())
+	t.Run("NoLogin", func(t *testing.T) {
+		req := NewRequest(t, "GET", "/user2/repo-release/releases/tag/v1.0")
+		resp := MakeRequest(t, req, http.StatusOK)
+		htmlDoc := NewHTMLParser(t, resp.Body)
+		// check the "number of commits to main since this release"
+		releaseList := htmlDoc.doc.Find("#release-list .ahead > a")
+		assert.EqualValues(t, 1, releaseList.Length())
+		assert.EqualValues(t, "3 commits", releaseList.First().Text())
+	})
+	t.Run("Login", func(t *testing.T) {
+		session := loginUser(t, "user1")
+		req := NewRequest(t, "GET", "/user2/repo1/releases/tag/delete-tag") // "delete-tag" is the only one with is_tag=true (although strange name)
+		resp := session.MakeRequest(t, req, http.StatusOK)
+		// the New Release button should contain the tag name
+		assert.Contains(t, resp.Body.String(), `<a class="ui small primary button" href="/user2/repo1/releases/new?tag=delete-tag">`)
+	})
 }
 
 func TestViewReleaseListLogin(t *testing.T) {