Both fixes we carried are upstream now, in the only two commits made
since our pin: 43d4fa9 strips the crash relaunch environment and closes
the info fd, and 28771c7 makes IpcHandler deregister through the
registry it registered with rather than re-resolving its engine
generation.
Upstream reaches the IPC fix differently - IpcHandlerRegistry became a
QObject held in a QPointer, where we kept a raw back-pointer cleared
from ~IpcHandlerRegistry - but it covers the same two cases: a handler
outliving its QML context, and a registry destroyed before its handlers.
Built clean without the patches at 0.3.0.r20.g28771c7-1.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
