I am trying to format a source attribute that stores a date value as a single 4-character long year value (1995, 2000, 2005) to be in ISO date format (1995-01-01). However my DateFormatter transformer is only outputting values for the current date or for the default value when it encounters an invalid value (0001-01-01).
Any ideas? I'm lost. See below for pictures describing the problem.
Workbench & DateFormatter transformer
Original dates before being transformed
(The "YEAR" attribute is renamed to "utility_year_of_construction" in between here)