MO: MO 21/72 concurrency @ MO 49

[mapcat]

MO21 uses the correct point at the MO21-72/MO49 junction.

[Markkos1992]

mapcat, I guess you were referring to an unsynced point.

I did notice that there is a shaping point along the MO 21/MO 49/MO 72 concurrency that should probably be replaced by a visible point at MO U.

[Highway63]

I thought all three of these got the same point after I tweaked them last time?

Regardless, I'll go through them again.