From 9ed5cca51ba8f8c1919108daa15c1a56f8876497 Mon Sep 17 00:00:00 2001
From: cngonzalez <carolina.nicole.gonzalez@gmail.com>
Date: Thu, 29 Feb 2024 11:14:47 -0700
Subject: [PATCH] fix(core): check if previous state is null for unmounted
 component (#5724)

---
 .../form/inputs/CrossDatasetReferenceInput/useReferenceInfo.ts  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/sanity/src/core/form/inputs/CrossDatasetReferenceInput/useReferenceInfo.ts b/packages/sanity/src/core/form/inputs/CrossDatasetReferenceInput/useReferenceInfo.ts
index e3593455039..0a91878bcae 100644
--- a/packages/sanity/src/core/form/inputs/CrossDatasetReferenceInput/useReferenceInfo.ts
+++ b/packages/sanity/src/core/form/inputs/CrossDatasetReferenceInput/useReferenceInfo.ts
@@ -78,7 +78,7 @@ export function useReferenceInfo(
   // workaround for a "bug" with useMemoObservable that doesn't
   // return the initial value upon resubscription
   const previousId = usePrevious(doc._id, doc._id)
-  if (previousId !== doc._id) {
+  if (doc._id && previousId !== doc._id) {
     return INITIAL_LOADING_STATE
   }
   return referenceInfo