fix(db-mongodb): localized blocks with fallback and versions (#13974)

Fixes https://github.com/payloadcms/payload/issues/13663
The issue appears to be reproducible only with 3 or more locales

test/localization/collections/Blocks/index.ts

@@ -4,7 +4,7 @@ export const blocksCollectionSlug = 'blocks-fields'
 
 export const BlocksCollection: CollectionConfig = {
   slug: blocksCollectionSlug,
-  versions: { drafts: true },
+  versions: { drafts: { autosave: true } },
   fields: [
     {
       type: 'tabs',
@@ -37,6 +37,10 @@ export const BlocksCollection: CollectionConfig = {
         {
           slug: 'blockInsideBlock',
           fields: [
+            {
+              name: 'text',
+              type: 'text',
+            },
             {
               name: 'content',
               type: 'blocks',

test/localization/e2e.spec.ts

@@ -3,10 +3,12 @@ import type { GeneratedTypes } from 'helpers/sdk/types.js'
 
 import { expect, test } from '@playwright/test'
 import { addArrayRow } from 'helpers/e2e/fields/array/index.js'
+import { addBlock } from 'helpers/e2e/fields/blocks/addBlock.js'
 import { navigateToDoc } from 'helpers/e2e/navigateToDoc.js'
 import { openDocControls } from 'helpers/e2e/openDocControls.js'
 import { upsertPreferences } from 'helpers/e2e/preferences.js'
 import { openDocDrawer } from 'helpers/e2e/toggleDocDrawer.js'
+import { waitForAutoSaveToRunAndComplete } from 'helpers/e2e/waitForAutoSaveToRunAndComplete.js'
 import { RESTClient } from 'helpers/rest.js'
 import path from 'path'
 import { fileURLToPath } from 'url'
@@ -28,6 +30,7 @@ import { AdminUrlUtil } from '../helpers/adminUrlUtil.js'
 import { initPayloadE2ENoConfig } from '../helpers/initPayloadE2ENoConfig.js'
 import { POLL_TOPASS_TIMEOUT, TEST_TIMEOUT_LONG } from '../playwright.config.js'
 import { arrayCollectionSlug } from './collections/Array/index.js'
+import { blocksCollectionSlug } from './collections/Blocks/index.js'
 import { nestedToArrayAndBlockCollectionSlug } from './collections/NestedToArrayAndBlock/index.js'
 import { noLocalizedFieldsCollectionSlug } from './collections/NoLocalizedFields/index.js'
 import { richTextSlug } from './collections/RichText/index.js'
@@ -63,6 +66,7 @@ let urlPostsWithDrafts: AdminUrlUtil
 let urlArray: AdminUrlUtil
 let arrayWithFallbackURL: AdminUrlUtil
 let noLocalizedFieldsURL: AdminUrlUtil
+let urlBlocks: AdminUrlUtil
 
 const title = 'english title'
 const spanishTitle = 'spanish title'
@@ -90,6 +94,7 @@ describe('Localization', () => {
     urlArray = new AdminUrlUtil(serverURL, arrayCollectionSlug)
     arrayWithFallbackURL = new AdminUrlUtil(serverURL, arrayWithFallbackCollectionSlug)
     noLocalizedFieldsURL = new AdminUrlUtil(serverURL, noLocalizedFieldsCollectionSlug)
+    urlBlocks = new AdminUrlUtil(serverURL, blocksCollectionSlug)
 
     context = await browser.newContext()
     page = await context.newPage()
@@ -651,6 +656,41 @@ describe('Localization', () => {
         })
         .toBeTruthy()
     })
+
+    test('blocks - should show fallback checkbox for non-default locale', async () => {
+      await page.goto(urlBlocks.create)
+      await addBlock({ page, blockToSelect: 'Block Inside Block', fieldName: 'content' })
+      const rowTextInput = page.locator(`#field-content__0__text`)
+      await rowTextInput.fill('text')
+      await saveDocAndAssert(page)
+      await changeLocale(page, 'pt')
+      const fallbackCheckbox = page.locator('#field-content', {
+        hasText: 'Fallback to default locale',
+      })
+
+      await expect(fallbackCheckbox).toBeVisible()
+    })
+
+    test('blocks - should successfully save with the fallback', async () => {
+      await page.goto(urlBlocks.create)
+      await addBlock({ page, blockToSelect: 'Block Inside Block', fieldName: 'content' })
+      const rowTextInput = page.locator(`#field-content__0__text`)
+      await rowTextInput.fill('text')
+      await saveDocAndAssert(page)
+      await changeLocale(page, 'pt')
+      await rowTextInput.fill('changed')
+      await waitForAutoSaveToRunAndComplete(page)
+      await saveDocAndAssert(page)
+      const docID = page.url().split('/').pop()?.split('?').shift()
+
+      const doc = await payload.find({
+        collection: 'blocks-fields',
+        where: { id: { equals: docID } },
+        locale: 'all',
+      })
+      // eslint-disable-next-line payload/no-flaky-assertions
+      expect(doc.docs).toHaveLength(1)
+    })
   })
 
   test('should use label in search filter when string or object', async () => {

test/localization/payload-types.ts

@@ -172,7 +172,7 @@ export interface RichText {
     root: {
       type: string;
       children: {
-        type: string;
+        type: any;
         version: number;
         [k: string]: unknown;
       }[];
@@ -202,6 +202,7 @@ export interface BlocksField {
     | null;
   content?:
     | {
+        text?: string | null;
         content?:
           | {
               text?: string | null;
@@ -390,6 +391,7 @@ export interface NoLocalizedField {
   text?: string | null;
   updatedAt: string;
   createdAt: string;
+  _status?: ('draft' | 'published') | null;
 }
 /**
  * This interface was referenced by `Config`'s JSON-Schema
@@ -903,6 +905,7 @@ export interface BlocksFieldsSelect<T extends boolean = true> {
         blockInsideBlock?:
           | T
           | {
+              text?: T;
               content?:
                 | T
                 | {
@@ -1086,6 +1089,7 @@ export interface NoLocalizedFieldsSelect<T extends boolean = true> {
   text?: T;
   updatedAt?: T;
   createdAt?: T;
+  _status?: T;
 }
 /**
  * This interface was referenced by `Config`'s JSON-Schema