fix for #6181, use of SUBMIT_ATTRS would crash in submit_utils.cpp.
fix for #6181, use of SUBMIT_ATTRS would crash in submit_utils.cpp.

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