database: Increase duration of previous db entry when deleting about plugins HOT 2 OPEN

Since the deleted value is not equal to the previous entry, wouldn‘t it be incorrect to increase the duration? It would imply that the previous value was valid for a longer time than it realy was.

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I get your point. But from my understanding, the db concept does not support invalid values. In addition, the purpose of the calculated duration for every db entry is not to mark the validity of the entry. The duration is there to calculate integral values, determin "device on" times, etc.
My conclusion is that the sum of all db durations in a certain time span should always reflect the time span itself. That's why I suggest to extend the duration of the previous duration upon deletion. In my opinion, it is wrong to manually delete a db entry without fixing the consistency of the duration.

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