A wind gust pushed Mary’s bike over with the daytime running light on the downward side:

Frankly, it’s better to have a cheap and easily replaceable plastic widget break, instead of something expensive and hard to find.
Because we live in the future, a replacement part was just a few hours away:

Well, a few hours after installing a replacement thermistor and recalibrating the M2, but nested repairs happen every now and again.
To the road!