diff --git a/stores/details.ts b/stores/details.ts
index f8698e54c..30bf1ed81 100644
--- a/stores/details.ts
+++ b/stores/details.ts
@@ -144,34 +144,33 @@ export function createDetailsStore(
       }),
       {
         name: detailsStorageName,
-        onRehydrateStorage() {
+        onRehydrateStorage(prevState) {
           return function (state) {
             if (state) {
               const validatedBedType = bedTypeSchema.safeParse(state.data)
-              if (validatedBedType.success) {
-                state.actions.updateValidity(StepEnum.selectBed, true)
-              } else {
-                state.actions.updateValidity(StepEnum.selectBed, false)
+              if (validatedBedType.success !== state.isValid["select-bed"]) {
+                state.isValid["select-bed"] = validatedBedType.success
               }
 
               const validatedBreakfast = breakfastStoreSchema.safeParse(
                 state.data
               )
-              if (validatedBreakfast.success) {
-                state.actions.updateValidity(StepEnum.breakfast, true)
-              } else {
-                state.actions.updateValidity(StepEnum.breakfast, false)
+              if (validatedBreakfast.success !== state.isValid.breakfast) {
+                state.isValid.breakfast = validatedBreakfast.success
               }
 
               const detailsSchema = isMember
                 ? signedInDetailsSchema
                 : guestDetailsSchema
               const validatedDetails = detailsSchema.safeParse(state.data)
-              if (validatedDetails.success) {
-                state.actions.updateValidity(StepEnum.details, true)
-              } else {
-                state.actions.updateValidity(StepEnum.details, false)
+              if (validatedDetails.success !== state.isValid.details) {
+                state.isValid.details = validatedDetails.success
               }
+
+              const mergedState = merge(state.data, prevState.data, {
+                arrayMerge,
+              })
+              state.data = mergedState
             }
           }
         },