Take it off and hope that section can beef up a little. It won't go back to normal but it certainly will only get weaker if the stem/over all weight is still adding on while that part remains restricted.
After about week 5 of flower you might want to brace that section with a small stick/bamboo like a splint if you think the weight of the above will get too much. Don't put a splint on before that as the stem will continue to grow until around then.. and you might end up in the same situation again. If you simply use a bamboo stick now stuck in the soil, the above V stems can be ''loosely'' supported so that they can not bend more than 10 degree or so.