Bug: Cannot align thank you message in the middle when using Arabic language in form settings.

While using Arabic language in the form settings which depend on right justification of elements as it is written from right to left, thank you message text will not respond to "align in the center" button, it will be aligned in the center while editing but when I try the form it will be right justified, I think right justification of Arabic language affect the justification of thank you message text.