[Webkit-unassigned] [Bug 171610] REGRESSION (r215951): LayoutTest media/modern-media-controls/placard-support/placard-support-pip.html is a flaky crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=171610

--- Comment #1 from Ryan Haddad <ryanhaddad at apple.com> ---
The crash is beneath WebKit in AVPlayer.

Application Specific Information:
CRASHING TEST: media/modern-media-controls/placard-support/placard-support-pip.html
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'An instance 0x7fe5a8655d60 of class AVPlayer was deallocated while key value observers were still registered with it. Current observation info: <NSKeyValueObservationInfo 0x7fe5a80ddce0> (
<NSKeyValueObservance 0x7fe5a795a600: Observer: 0x7fe5a7bd8e50, Key path: rate, Options: <New: NO, Old: NO, Prior: NO> Context: 0x0, Property: 0x7fe5a7eecee0>
)'
terminating with uncaught exception of type NSException
abort() called

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