Fix front matter date location when value gets inherited from other dates

Fixes #12236

resources/page/pagemeta/pagemeta_integration_test.go

@@ -0,0 +1,45 @@
+// Copyright 2024 The Hugo Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package pagemeta_test
+
+import (
+	"testing"
+
+	"github.com/gohugoio/hugo/hugolib"
+)
+
+func TestLastModEq(t *testing.T) {
+	files := `
+-- hugo.toml --
+timeZone = "Europe/London"
+-- content/p1.md --
+---
+title: p1
+date: 2024-03-13T06:00:00
+---
+-- layouts/_default/single.html --
+Date: {{ .Date }}
+Lastmod: {{ .Lastmod }}
+Eq: {{ eq .Date .Lastmod }}
+
+`
+
+	b := hugolib.Test(t, files)
+
+	b.AssertFileContent("public/p1/index.html", `
+Date: 2024-03-13 06:00:00 +0000 GMT
+Lastmod: 2024-03-13 06:00:00 +0000 GMT
+Eq: true
+`)
+}