Impossible to save user profile when a textarea field is disabled

Hi,

There are two bugs when I disable a textarea field of XWikiUsers class.
On the user profile page, the field is not disabled (read only).
And It is impossible to modify the user profile probably because the WYSIWYG editor (even if I don't change values): in edit mode when I click on Save (View & Continue) the error message is displayed: "Error: XWiki.XWikiUsers_0_adress: Exception while parsing HTML"

Here 3 nice screenshots with URL:

Thxs

Pascal B