This issue has been closed as 'Won't Fix' due to an extended period of time without updates. If this issue is important to you please let us know by posting on the AnswerHub or UDN, and Epic will re-open the ticket for further review.
Loading a level through the content browser and File->Open Level do not have the same behavior.
Result:
Double clicking asset in content browser causes editor to trigger check in MyActor class
Expected:
File->Open Level would trigger the check the same way double clicking on the asset does.
Head over to the existing Questions & Answers thread and let us know what's up.