fix: formula without referenced column

Signed-off-by: mertmit <mertmit99@gmail.com>

packages/nocodb/src/modules/jobs/export-import/import.service.ts

@@ -738,10 +738,13 @@ export class ImportService {
         relatedColIds.push(col.colOptions.fk_rollup_column_id);
       }
       if (col.colOptions?.formula) {
+        const colIds = col.colOptions.formula.match(/(?<=\{\{).*?(?=\}\})/gm);
+        if (colIds && colIds.length > 0) {
           relatedColIds.push(
             ...col.colOptions.formula.match(/(?<=\{\{).*?(?=\}\})/gm),
           );
         }
+      }
 
       // find the last related column in the sorted array
       let fnd = undefined;