fix issue with key-based identity #623
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keys for elements at the root of a component were not being tracked. thus key changes for elements at the root did not trigger unmounts.
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closes: #622
keys for elements at the root of a component were not being tracked. thus key changes for elements at the root did not trigger unmounts.
The logic inside of
layout.pyis becoming increasingly convoluted. it needs to be refactored. Thankfully we have an extensive library of tests which we can use to prevent regressions once there's time to do that.