Add check for 299 switching to vacant land PIN
Per valuations, when a condo building is demolished, often its primary PIN will revert to vacant land or an otherwise land-only class, however, the sub-PINs for each individual unit may still be 299s and thus included in reporting etc.
We should add a check for this edge case to the model and reporting to ensure anything that changes from a 299 to a land-only class is booted from the model and stats.
Edited by Dan Snow