AEM Forms - Translations not picked up for Text component on publish or author(while using "wcmmode=disabled")

Hello experts, 

I have created a form and dictionary entries are present for different locale(en,fr,de).
After adding the form on a page with lang fr, translations are not picked up for "/apps/core/fd/components/form/text/v1/text" component on publisher or author (while using "wcmmode=disabled").

Without adding "wcmmode=disabled" to the url, all the translations work as expected.
When form is refreshed with "wcmmode=disabled&afAcceptLang=fr-fr" in the URL, all the translations work well.

Can you please let me know if I am doing something wrong or this is an issue/any workarounds?

AEM version 6.5.17
core components version 1.1.27-wcmB004

Thanks in advance!