Fatal error if GrDF returns no start index/end index/volume/energy data in the record

[ssenart]

2024-12-09 14:01:08.922 ERROR (MainThread) [homeassistant] Error doing job: Task exception was never retrieved (None)
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 1046, in _async_update_entity_states
await entity.async_update_ha_state(True)
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 962, in async_update_ha_state
self._async_write_ha_state()
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1132, in _async_write_ha_state
self.__async_calculate_state()
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1069, in __async_calculate_state
state = self._stringify_state(available)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1013, in _stringify_state
if (state := self.state) is None:
^^^^^^^^^^
File "/config/custom_components/gazpar/sensor.py", line 239, in state
return Util.toState(self._dataByFrequency)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/config/custom_components/gazpar/util.py", line 38, in toState
while (currentIndex < len(dailyData)) and (float(dailyData[currentIndex][PropertyName.START_INDEX.value]) == float(dailyData[currentIndex][PropertyName.END_INDEX.value])):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: float() argument must be a string or a real number, not 'NoneType'

[C-Duv]

Note: You have irrelevant "zigbee2mqtt" logs in there.

[ssenart]

It has been fixed in pre-release 1.3.11-alpha.0.