Don't get all organization members when iterating over memberships
Don't get all organization members when iterating over memberships

The number of members of political parties can be huge, and you don't
need that when you're iterating over the memberships of a particular
person.

datamade/yournextmp-popit,openstate/yournextrepresentative,mhl/yournextmp-popit,YoQuieroSaber/yournextrepresentative,mysociety/yournextmp-popit,neavouli/yournextrepresentative,mysociety/yournextrepresentative,datamade/yournextmp-popit,YoQuieroSaber/yournextrepresentative,neavouli/yournextrepresentative,mysociety/yournextrepresentative,mysociety/yournextrepresentative,mysociety/yournextrepresentative,neavouli/yournextrepresentative,DemocracyClub/yournextrepresentative,datamade/yournextmp-popit,neavouli/yournextrepresentative,datamade/yournextmp-popit,mysociety/yournextmp-popit,openstate/yournextrepresentative,mysociety/yournextmp-popit,mysociety/yournextmp-popit,DemocracyClub/yournextrepresentative,mysociety/yournextrepresentative,DemocracyClub/yournextrepresentative,YoQuieroSaber/yournextrepresentative,openstate/yournextrepresentative,mhl/yournextmp-popit,openstate/yournextrepresentative,YoQuieroSaber/yournextrepresentative,YoQuieroSaber/yournextrepresentative,openstate/yournextrepresentative,mhl/yournextmp-popit,neavouli/yournextrepresentative,datamade/yournextmp-popit,mysociety/yournextmp-popit