Hello All, Could you please share your wisdom on the following issue: I have added a new property to a model and would like to filter the data on this property. However, I already have quite a bit of data stored and all the entities that were created before the last upgrade don't have the new property and hence won't be returned by the queries once the filter is added. How are you dealing with such situations? Is there some sort of best practice here or maybe I just missed something in the docs? Since there are no batch updates, it looks like the only option is to cycle through all the entities and update them one by one. But then again there's too much data to do it in a single request, so I should process only this much entities at a time and enqueue the rest of processing. It just sounds like too much code for something this simple. I'm considering writing a generic routine in python to handle this type of upgrades, but wanted to check first if I'm missing anything or if such routine already exists.
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