Improve DOE behavior for poll messages

ts/test-node/sql/migration_1561_test.node.ts

@@ -0,0 +1,80 @@
+// Copyright 2025 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+import { assert } from 'chai';
+
+import { type WritableDB } from '../../sql/Interface.std.js';
+import {
+  createDB,
+  getTableData,
+  insertData,
+  updateToVersion,
+} from './helpers.node.js';
+
+describe('SQL/updateToSchemaVersion1561', () => {
+  let db: WritableDB;
+
+  beforeEach(() => {
+    db = createDB();
+    updateToVersion(db, 1560);
+  });
+  afterEach(() => {
+    db.close();
+  });
+
+  it('removes json.poll and hasUnreadPollVotes', () => {
+    insertData(db, 'messages', [
+      {
+        id: 'message-id',
+        isErased: 0,
+        json: {
+          id: 'message-id',
+          poll: {
+            question: 'poll question',
+          },
+        },
+        hasUnreadPollVotes: 1,
+      },
+      {
+        id: 'message-id-2',
+        isErased: 1,
+        json: {
+          id: 'message-id-2',
+          poll: {
+            question: 'poll question',
+          },
+        },
+        hasUnreadPollVotes: 1,
+      },
+    ]);
+    updateToVersion(db, 1561);
+    assert.deepStrictEqual(
+      getTableData(db, 'messages').map(row => ({
+        id: row.id,
+        json: row.json,
+        isErased: row.isErased,
+        hasUnreadPollVotes: row.hasUnreadPollVotes,
+      })),
+      [
+        {
+          id: 'message-id',
+          isErased: 0,
+          json: {
+            id: 'message-id',
+            poll: {
+              question: 'poll question',
+            },
+          },
+          hasUnreadPollVotes: 1,
+        },
+        {
+          id: 'message-id-2',
+          isErased: 1,
+          json: {
+            id: 'message-id-2',
+          },
+          hasUnreadPollVotes: 0,
+        },
+      ]
+    );
+  });
+});