Cannot `flexmeasures weather get-weather-forecasts` using `asset-id <n>`

[beralt85]

Description

Using flexmeasures weather register-weather-sensor I created a weather station with asset id 16 and a couple of sensors:

$ flexmeasures show asset --id 16
=====================================================
Asset weather station (created by FM-Weather) (ID: 16)
=====================================================

Type             Location          Flex-Context    Sensors to show    Attributes
---------------  ----------------  --------------  -----------------  ------------
weather station  (<redacted>, <redacted>)

================================================================
Child assets of weather station (created by FM-Weather) (ID: 16)
================================================================

No children assets ...

All sensors in asset:
 
  ID  Name         Unit    Resolution    Timezone    Attributes
----  -----------  ------  ------------  ----------  -------------------------
  12  cloud cover  %       an hour       UTC         daily_seasonality: True
                                                     weekly_seasonality: False
                                                     yearly_seasonality: True
  13  irradiance   W/m²    an hour       UTC         daily_seasonality: True
                                                     weekly_seasonality: False
                                                     yearly_seasonality: True
  11  temperature  °C      an hour       UTC         daily_seasonality: True
                                                     weekly_seasonality: False
                                                     yearly_seasonality: True
  10  wind speed   m/s     an hour       UTC         daily_seasonality: True
                                                     weekly_seasonality: False
                                                     yearly_seasonality: True

When trying to get the weather forecasts by specifying the asset id, I get an error

$ flexmeasures weather get-weather-forecasts --asset-id 16

[FLEXMEASURES] Task get-weather-forecasts encountered a problem: "'NoneType' object has no attribute 'generic_asset_type'". More details: {'src_module': '/app/instance/flexmeasures-weather/flexmeasures_weather/utils/locating.py', 'src_linenr': 120, 'src_func': 'get_location_by_asset_id', 'src_code': 'if asset.generic_asset_type.name != WEATHER_STATION_TYPE_NAME:'}
[FLEXMEASURES] Reported task get-weather-forecasts status as False

In contrast, retrieving weather forecasts by location works as expected.