Layout Editor: Default Value is cleared If fieldProperty is enabled/disabled (using a switch UI)

Issue

Field default value is cleared when clicking on Mandatory, Quick Create, Mass Edit, Header, Key Field switch.

This does NOT happen if "Edit Field Properties" modal is used.

Steps to replicate

1. Go to Layout Editor
2. Set a default value for ANY field
3. Click on any switch to enable/disable property > default value gets cleared.

Replicated on: https://demo.vtiger.com/vtigercrm/index.php?

Video/Gif