At this location, there are two turn restrictions with this fixme.

The easier one is "Tai Tong Road cannot u-turn to (self) Tai Tong Road". This is trivially true.

The harder one is "Tai Tong Road (roundabout) cannot right-turn to Kiu Hing Road". Normally you cannot cross over double-lines (e.g. no overtaking). The shape is very unique here, but essentially this looks like the vehicle would be crossing the double-lines to reach the opposite side of the road, which should be permitted.

I think this interpretation is OK. See if any vehicle guys can chime in, but if no reaction, I will take this interpretation and do the changeset.