The form jelly library uses table for layout. The repeatable jelly template inserts div elements. If a repeatable jelly template is expanded in a form then there are div elements that are children of the table element. This is not valid HTML and results in undefined behavior.

According to the HTML 4 spec a table element cannot directly contain a div element. A table row or table data element can contain a div element but not a table element directly:

• http://www.w3.org/TR/html401/struct/tables.html#h-11.2.3