When using Test Case Importer, Xray should verify Required Fields' Default Values

Description
When using Test Case Importer, Xray checks for Required Fields as it should; however, it is not verifying the Required Fields' Default Values.

Pre-conditions

1. Create a Custom Field;
2. Set its Default Value:
   
3. Added it to Xray's Test issue type:
   
4. Set it as Required:
   

How to reproduce

1. Enter the Test Case Importer;
2. Don't map the Required Field, and press "Next":
   

Actual result/Attachments
You get an error not allowing you to proceed:

Expected result
Xray checks and assumes the Required Fields' Default Value and creates the Tests.