I encountered this perfectly reproducible exact 12% total freeze bug
using a Jessie installer image dating back a few months on an Intel
J1900 host with integrated Realtek network hardware - I'm afraid I don't
know which Jessie sub-version.
However, on the exact same hardware (including the USB flash dongle),
the Debian installer completed successfully using the
debian-8.2.0-amd64-netinst.iso image.
Users who encountered this bug with a Jessie DI version older than the
8.2.0 that was published in September 2015 might want to try again with
that one.
