Fix PreviewJob memory leak
setAutoDelete(false) means that it won't be deleted when merely doing kill() and forgetting the pointer (so manual "delete" in this file won't happen).
Found by looking for code that uses KJob::setAutoDelete(false)
setAutoDelete(false) means that it won't be deleted when merely doing kill() and forgetting the pointer (so manual "delete" in this file won't happen).
Found by looking for code that uses KJob::setAutoDelete(false)