Add copy ctor to HASHITER class, it had a copy-assignment operator #6992
Add copy ctor to HASHITER class, it had a copy-assignment operator #6992

Violated rule-of-3

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