Sleep Biometric can't be pre-populated, added, or edited with zero value
The Sleep Biometric can no longer be populated in advance with a zero value, such as when setting up your diary entries a week in advance, then editing the zero value on the actual day with the actual value (web version). This used to work fine but recently seems to have broken with ACHTUUUUUUNGG (yellow text) appearing under UNIT in the add dialog pop-up and disallowing the zero value. Also, any daily entries added before this broke can not be edited and must be deleted.