[BUG] A Plugwise Error Notification does not clear in HA Core after the root-cause of the error has been cleared.

[bouwew]

Describe the bug
As reported here: https://community.home-assistant.io/t/plugwise-smile-custom-component-beta/183560/78

Home Assistant (please complete the following information):

• Version: 0.113.2
• Installed plugwise version: beta 0.4.0
• Installed through: HACS

Smile (please complete the following information):

• Sort of Smile: Anna
• Firmware: unknown

[bouwew]

Fixed in v0.5.0

[bouwew]

The bug is unfortunately still there, in v0.6.0.

I can see that the notification message is no longer present on the Smile, but it's still present in the self._api-data.

[bouwew]

Re-fixed in v0.6.1, via Plugwise_Smile v1.2.2