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  Fix scrape crash: don't run GUI slots on worker threads

  quoije released this 2026-09-14 21:54:59 -04:00 | 2 commits to main since this release

  Connecting a signal to a Python lambda has no QObject receiver, so PySide6
  treats it as a direct connection and runs the lambda on the emitting (worker)
  thread. The scrape dialog connected its results signals to lambdas, so
  _on_results/_on_scraped executed on the worker thread and called
  accept()/done() there -> QThread::wait on itself and GUI widget mutation off
  the GUI thread -> 'QThread: Destroyed while thread is still running' abort.

  Connect to bound methods (queued to the GUI thread) and carry the generation
  on the worker (read via sender().gen). Also replaced the thread.finished
  lambdas in load_library/metadata with bound-method cleanup keyed by a
  thread._worker attribute.

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