Receivers are non-deterministic #175
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findMonitorsAndReceiverInRegistry will look through the registry viewIds and return the last receiver which matches. the problem here is that this assumes that the order of receiver ids in the registry viewIds is bottom to top. this is not always the case when you have various receivers re-rendering for various reasons. this resulted in a non-deterministic receiver being called on drop instead of the top most one. in order to fix this, I added a resolution algorithm in the case that multiple receivers overlap the target point. the resolution algorithm solves the issue first by looking through the parent tree and removing all parents. while I believe this should be enough, for safety, I added an additional fallback measure which chooses the receiver with the smallest area as generally things on top should be smaller than things on bottom.