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Run the attached project and take a HeapShot. Notice that there are 3 ContainerObjects in memory. There should be zero.
The three ContainerObjects are created in FinishedLaunching and no reference to them is kept. The constructor of ContainerObject does nothing but instantiate a LeakedViewController and a UIPopoverController containing it. LeakedViewController does nothing but contain a reference to an Action.
Disposing of the UIPopoverController solves this leak. However that is unwieldy and error-prone in practice.
Created attachment 7722 [details]
Relevant source files
Whole project was too large.
Created attachment 7723 [details]
Nevamind this doesn't happen with v7.1