Comparison to None supplemented by comparison to empty string, as it does not evaluate to None in the current implementation.
Comparison to None supplemented by comparison to empty string, as it does not evaluate to None in the current implementation.

htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor