fix

server/src/queries/asset.repository.sql

@@ -335,7 +335,7 @@ with
       coalesce(array_agg("ratio"), '{}') as "ratio",
       coalesce(array_agg("status"), '{}') as "status",
       coalesce(array_agg("thumbhash"), '{}') as "thumbhash",
-      coalesce(array_agg("stack"), '{}') as "stack"
+      coalesce(json_agg("stack"), '[]') as "stack"
     from
       "cte"
   )

server/src/repositories/asset.repository.ts

@@ -692,7 +692,7 @@ export class AssetRepository {
             eb.fn.coalesce(eb.fn('array_agg', ['thumbhash']), sql.lit('{}')).as('thumbhash'),
           ])
           .$if(!!options.withStacked, (qb) =>
-            qb.select((eb) => eb.fn.coalesce(eb.fn('array_agg', ['stack']), sql.lit('{}')).as('stack')),
+            qb.select((eb) => eb.fn.coalesce(eb.fn('json_agg', ['stack']), sql.lit('[]')).as('stack')),
           ),
       )
       .selectFrom('agg')