Steps to reproduce the issue

In XML file we have a tag called "validationtext".
This element is not useful because it is not translatable.

Expected result

data-validation-text="Please fill Title"

Actual result

data-validation-text="TITLE_FILL_ELEMENT"

System information (as much as possible)

In the .ini file :
TITLE_FILL_ELEMENT="Please fill Title"

Additional comments

Please fix this file : layouts\joomla\form\field\text.php
At line : 98
!empty($validationtext) ? 'data-validation-text="' . $validationtext . '"' : '',
Change this line to this :
!empty($validationtext) ? 'data-validation-text="' . Text::_($validationtext) . '"' : '',
Thanks.