Check the QLockFile in staleFiles() before returning a no-KF5 recovery candidate, matching the KAutoSaveFile contract that actively owned autosave files are not stale.
Extend the no-KF5 Catch test so a child process keeps the autosave lock alive while allStaleFiles() runs, then verify recovery after the child is killed.
Assisted-by: pi coding agent / Mika (OpenAI GPT-5.5)
Provide a small KAutoSaveFile-compatible implementation for the no-KF5 build path and use it to keep the existing crash-recovery code active when BUILD_WITH_KF5=OFF.
The normal KF5 build still uses the KDE KAutoSaveFile implementation.
Assisted-by: pi coding agent / Mika (OpenAI GPT-5.5)
The BUILD_WITH_KF5 option was checked with DEFINED, so passing -DBUILD_WITH_KF5=OFF still entered the KF5 setup path.
Skip the KF5 setup when disabled and provide small Qt-only replacements for the KDE color widgets used by .ui files in that build mode.
Assisted-by: pi coding agent / Mika (OpenAI GPT-5.5)
Gerhard Schwanzer