fix(preview): prefer snapshot over original when previewing (#8792)

bjoerge · web-flow · commit 9c6b207b8feb · 2025-02-28T09:17:48.000Z
diff --git a/packages/sanity/src/core/preview/utils/getPreviewValueWithFallback.tsx b/packages/sanity/src/core/preview/utils/getPreviewValueWithFallback.tsx
@@ -32,7 +32,7 @@ export function getPreviewValueWithFallback({
   if (document && !original && !snapshot) {
     return getMissingDocumentFallback(document)
   }
-  return assignWith({}, original, snapshot, (objValue, srcValue) => {
+  return assignWith({}, snapshot, original, (objValue, srcValue) => {
     return typeof srcValue === 'undefined' ? objValue : srcValue
   }) as PreviewValue
 }

Original file line number	Diff line number	Diff line change
`@@ -32,7 +32,7 @@ export function getPreviewValueWithFallback({`
`32`	`32`	`if (document && !original && !snapshot) {`
`33`	`33`	`return getMissingDocumentFallback(document)`
`34`	`34`	`}`
`35`		`- return assignWith({}, original, snapshot, (objValue, srcValue) => {`
	`35`	`+ return assignWith({}, snapshot, original, (objValue, srcValue) => {`
`36`	`36`	`return typeof srcValue === 'undefined' ? objValue : srcValue`
`37`	`37`	`}) as PreviewValue`
`38`	`38`	`}`