fix: skip setting default value for LTAR/Links and other virtual columns

Signed-off-by: Pranav C <pranavxc@gmail.com>

packages/nc-gui/components/smartsheet/grid/GroupByTable.vue

@@ -1,4 +1,6 @@
 <script lang="ts" setup>
+import { UITypes, isLinksOrLTAR } from 'nocodb-sdk'
+import { RollupColumn } from '../../../../nocodb/src/models'
 import Table from './Table.vue'
 import { IsGroupByInj, computed, ref } from '#imports'
 import type { Group, Row } from '#imports'
@@ -43,7 +45,14 @@ function addEmptyRow(group: Group, addAfter?: number) {
   addAfter = addAfter ?? group.rows.length
 
   const setGroup = group.nestedIn.reduce((acc, curr) => {
-    if (curr.key !== '__nc_null__') acc[curr.title] = curr.key
+    if (
+      curr.key !== '__nc_null__' &&
+      // avoid setting default value for rollup, formula, barcode, qrcode, links, ltar
+      !isLinksOrLTAR(curr.column_uidt) &&
+      ![UITypes.Rollup, UITypes.Lookup, UITypes.Formula, UITypes.Barcode, UITypes.QrCode].includes(curr.column_uidt)
+    ) {
+      acc[curr.title] = curr.key
+    }
     return acc
   }, {} as Record<string, any>)