[Sub-form] Validation message for repeatable-table layout of sub-form getting blank

[pranotiTechjoomla]

Steps to reproduce the issue

Login to administrator
Goto Email Domain Options of user config and add domain.
Domain name is a required field.
Save domain name with a blank value.

Expected result

The error message should show as Invalid field: Domain Name

Actual result

The error message only shows Error

System information (as much as possible)

Joomla Version 3.9.X (tested on 3.9.15)

[Polm90]

Same issue, even in custom components, even on frontend side

[manav014]

I am working on the issue and would be updating soon.

[manav014]

#27909
Improved Solution

[jwaisner]

Please reference PR # 27909