REGRESSION (270237@main): ASSERTION FAILED: !m_deletionHasBegun in RefCountedBase::hasOneRef() when running media/media-source/mock-managedmse-bufferedchange.html
<rdar://problem/118206047>
Pull request: https://github.com/WebKit/WebKit/pull/20272
Committed 270510@main (7fcc1635bd52): <https://commits.webkit.org/270510@main> Reviewed commits have been landed. Closing PR #20272 and removing active labels.