Merge pull request #13698 from Budibase/fix/editing-rows-in-modals

Fix JSON error when editing rows in modal that contain unset attachment fields

packages/builder/src/components/backend/DataTable/RowFieldControl.svelte

@@ -14,9 +14,8 @@
   import LinkedRowSelector from "components/common/LinkedRowSelector.svelte"
   import Editor from "../../integration/QueryEditor.svelte"
 
-  export let defaultValue
   export let meta
-  export let value = defaultValue || (meta.type === "boolean" ? false : "")
+  export let value
   export let readonly
   export let error
 

packages/server/src/utilities/rowProcessor/index.ts

@@ -242,7 +242,7 @@ export async function outputProcessing<T extends Row[] | Row>(
           }
           return attachment
         }
-        if (typeof row[property] === "string") {
+        if (typeof row[property] === "string" && row[property].length) {
           row[property] = JSON.parse(row[property])
         }
         if (Array.isArray(row[property])) {