Comment 5 for bug 2067071

It looks like you made some code changes to fix, but I did try the upgrade again and fails the same way:

   res = f(*args, **kwargs)
          ^^^^^^^^^^^^^^^^^^
  File "/tmp/ubuntu-release-upgrader-vh4mksxv/DistUpgrade/DistUpgradeCache.py", line 626, in distUp
grade
    self.pre_upgrade_rule()
  File "/tmp/ubuntu-release-upgrader-vh4mksxv/DistUpgrade/DistUpgradeCache.py", line 497, in pre_up
grade_rule
    self.quirks.run("PreDistUpgradeCache")
  File "/tmp/ubuntu-release-upgrader-vh4mksxv/DistUpgrade/DistUpgradeQuirks.py", line 95, in run
    func()
  File "/tmp/ubuntu-release-upgrader-vh4mksxv/DistUpgrade/DistUpgradeQuirks.py", line 191, in PreDi
stUpgradeCache
    self._install_t64_replacement_packages()
  File "/tmp/ubuntu-release-upgrader-vh4mksxv/DistUpgrade/DistUpgradeQuirks.py", line 1845, in _install_t64_replacement_packages
    if replacement.candidate._cand != ver:
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute '_cand'

Any chance the changes could be released or is there a way I can test them?