TBB 6.0.5 DomainIsolator does not generate unique nonce paswords for socksauth

TBB 6.0.5 under Debian-8 with Isolating Proxy (Whonix)

SocksAuth viewed in Browser Console with torbutton.loglevel=3 shows :0 for all domains. Password=0 persists even after issuing newnym (via New Identity).

TBB 6.5a3 & TBB 6.5a3-hardened do not exhibit this behavior. These browsers generate unique nonce passwords for separate domains, which are re-generated when newnym is issued.

Trac:
Username: entr0py