retain current task priority, to avoid distortion due to local forks (e.g. sledgehammer query operation);
retain current task priority, to avoid distortion due to local forks (e.g. sledgehammer query operation);

MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle