Comment 6 for bug 1885935

Similarly hitting neutron-api-plugin-ovn

http://osci:8080/job/charm_pusher_neutron-api-plugin-ovn_stable/1/consoleFull

build: ERROR: Double requirement given: charmhelpers from git+https://github.com/juju/charm-helpers.git@stable/20.05#egg=charmhelpers (from -r /tmp/tmpn7y57j7s/wheelhouse.txt (line 32)) (already in charmhelpers<1.0.0,>=0.4.0 (from -r /tmp/tmpn7y57j7s/wheelhouse.txt (line 11)), name='charmhelpers')