Allow Invisible Marking of Word Division

In countries such as Thailand, word division is inferred, so they do not use spaces. They are consequently unable to dynamically reflow braille without words being split over a line break.
To account for these cases, I would like the EBraille standard to permit a second word division character in addition to a space, which is recognised by the reading agent as a word division character for the purposes of line wrap, but otherwise not displayed to the reader.
A potential possibility for this second character is the Zero Width Joiner, U+200D.