build_zoning fails when we do not save hex_bins to the database

[pedrocamargo]

File /workspaces/tradesman/notebooks/../tradesman/model.py:128, in Tradesman.build_zoning(self, hexbin_size, max_zone_pop, min_zone_pop, save_hexbins, overwrite)
126 if sum(self._project.conn.execute("Select count(*) from Zones").fetchone()) > 0:
127 return
--> 128 zone_builder(self._project, hexbin_size, max_zone_pop, min_zone_pop, save_hexbins)

File /workspaces/tradesman/notebooks/../tradesman/model_creation/zoning/zone_building.py:44, in zone_builder(project, hexbin_size, max_zone_pop, min_zone_pop, save_hexbins)
42 zones_with_pop = zones_with_population(project, zones_with_locations)
43 print("\n after zones_with_pop", strftime("%Y-%m-%d %H:%M:%S", gmtime()))
---> 44 project.conn.execute("DELETE FROM hex_pop;")
45 project.conn.execute("DELETE FROM zones;")
46 project.conn.commit()

OperationalError: no such table: hex_pop

[pedrocamargo]

Was this fixed, @r-akemii ?