State class for tariff standing & rate sensors are not set

[markcocker]

Describe the bug

HA statistics page reports that the state class of the following entities are not supported:

• DCC Sourced smart electricity meter Standing charge (sensor.electric_tariff_standing)
• DCC Sourced smart electricity meter Rate (sensor.electric_tariff_rate)
• DCC Sourced smart gas meter Standing charge (sensor.gas_tariff_standing)
• DCC Sourced smart gas meter Rate (sensor.gas_tariff_rate)

To Reproduce

1. Go to Developer Tools > Statistics /developer-tools/statistics
2. See error.

Expected behaviour
HA to report no issues.

Screenshots

Version
1.0.2

[HandyHat]

Hey @markcocker, does this cause any problems elsewhere?
The reason this issue is being reported is that these sensors used to have a state class of measurement and thus have long-term statistics calculated for them. However, looking at the docs (https://developers.home-assistant.io/docs/core/entity/sensor/#available-state-classes), I don't think they should have done as they aren't a measurement of anything, so I removed the state class.

It should be safe to remove the long term statistics by clicking fix issue, remove.

[markcocker]

Thanks for the update.
I have clicked "fix issue" on each of the sensors, restarted, and not seen any other problems.