chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

models/issues/issue_update_test.go

@@ -0,0 +1,33 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	issues_model "gitea.dev/models/issues"
+	repo_model "gitea.dev/models/repo"
+	"gitea.dev/models/unittest"
+	"gitea.dev/modules/util"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestUpdateIssueAttachmentsCrossRepo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// attachment id 2 belongs to repo 2 / issue 4; issue 1 lives in repo 1
+	issue1 := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1})
+	foreign := unittest.AssertExistsAndLoadBean(t, &repo_model.Attachment{ID: 2})
+	require.NotEqual(t, issue1.RepoID, foreign.RepoID)
+
+	// re-linking a foreign repo's attachment by UUID must be rejected
+	err := issues_model.UpdateIssueAttachments(t.Context(), issue1.ID, []string{foreign.UUID})
+	assert.ErrorIs(t, err, util.ErrPermissionDenied)
+
+	// the foreign attachment must be left untouched
+	reloaded := unittest.AssertExistsAndLoadBean(t, &repo_model.Attachment{ID: 2})
+	assert.Equal(t, foreign.IssueID, reloaded.IssueID)
+}