Unexpected semantic error with List promotion

[brynrhodes]

This library unexpectedly gives: Could not resolve call to operator DateFrom with signature(List)
I suspect this is because it's trying to do list promotion, but it means that that option causes unexpected semantic errors in this case.

library TestIntervalPrecision

define Patient: Tuple {
  birthDateTime: @1974-10-21T10:30:00.0
}

define FirstTwoYears:
  Interval[date from Patient.birthDateTime, "Date of Second Birthday"]

define "Date of Second Birthday":
  date from Patient.birthDateTime + 2 years