dualfroz
1a56b64326
When the time-of-day search rolls back past the 1st of the month, dayLimit (and maxDay) can drop below the first valid day of month. The day-of-month '*' fast path in TryGetPreviousDay returned actualDay = 0, and DateTimeToTicks(year, month, 0, ...) underflowed into the last day of the previous month, which is not re-validated against the month field. Guard against maxDay below the first day of month so the caller advances to the previous allowed month instead.