Cascading list values are not properly imported from Bulk create setup feature

Issue Summary

Cascading field values are not properly imported, while bulk creates issues using CSV data. Only parent values are displayed after import and child values are not displayed.

Note: The same data is properly imported from the 'External System Import' feature available at Jira Settings > System > External System Import.

Steps to Reproduce

1. Click the ‘Create’ button on your site. Issue create screen will open.
2. Click on the ‘Import issues’ button on Create issue screen. The ‘Bulk create: Setup’ screen will appear.
3. Import CSV file by navigating through the bulk create setup wizard. On the field mapping screen, map your cascading values column to Jira custom field of type ‘Select List (cascading)’ field created on the site.
4. On the list screen of the wizard, click ‘Begin import’.
5. Issues will be imported successfully.

Expected Results

On the issue view screen, the custom field of type ‘Select List (cascading)’ field shows both parent and child.

For example, if test data is “Product->Company” , then field show both parent( Product) and child (Company)

Actual Results

On the issue view screen, the custom field of type ‘Select List (cascading)’ field shows only the parent value. Child value is missing

Workaround

You can import CSV from External System Import available at Jira Settings > System > External System Import. But, it requires Jira Administrator privileges.