copilit commment resolved: made validation regex as optional field.

Author: yashin4112

ui/src/components/ContentMapper/contentMapper.interface.ts

@@ -71,7 +71,7 @@ export interface FieldMapType {
 }
 
 export interface Advanced {
-  validationRegex: string;
+  validationRegex?: string;
   mandatory?: boolean;
   multiple?: boolean;
   unique?: boolean;

ui/src/components/ContentMapper/index.tsx

@@ -2028,10 +2028,8 @@ const ContentMapper = forwardRef(({ handleStepChange }: contentMapperProps, ref:
         contentstackField: row?.otherCmsField,
         contentstackFieldUid: row?.backupFieldUid,
         advanced: {
-          validationRegex: row?.advanced?.initial?.validationRegex ?? '',
           ...row?.advanced?.initial,
         },
-        refrenceTo: []
       };
     });
     setTableData(updatedRows);