What is the advantage of using the "validationtext" tag in the text element?

[balvard]

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.

[Quy]

@dgrammatiko Hopefully you can provide additional information on this attribute. Thanks.
f0ba73a#diff-7195eb75172e6bd0b450db0f22c89a8a24d8e65afd2d06df17d83e7c278d4d0bR74

[dgrammatiko]

The data-validation-text is used in the validation script (client side) in order devs to have the option to set a custom invalid state message PER FIELD:

joomla-cms/build/media_source/system/js/fields/validate.es6.js

Line 110 in d72d639

const message = element.getAttribute('data-validation-text');

FWIW the platform itself with the newest native formvalidation supports a similar thing (although the attributes reflect the invalid state)

[Hackwar]

I created #43198 to fix this. Closing this issue. Thanks for your report.