This is a sign where the max speed is only when taking the left track instead of going straight. The sign is yellow with a left arrow underneath the numbers on the pole on left side of the track. The tag is trying to follow the format described here: https://wiki.openstreetmap.org/wiki/Conditional_restrictions#Tagging

Though I do admit that it’s missing the @. The condition is when going left and nothing more.

I had originally deleted the FIXME for this issue, since the limit was already on the track, and I was having a hard time addressing the FIXME tag to tag the sign correctly. @impiaaa didn’t like that solution.

The previous discussion on this topic can be found here: https://www.openstreetmap.org/changeset/137889032