There are two distinct ways to store a city for users in edx-platform:
one directly in UserProfile.city, and another in UserProfile.meta.
Depending on configuration, both fields can be used. Though the
UserProfile.meta['city'] field is not set unless specifically configured,
so we choose this over the UserProfile.city field when generating the student
features report.
Additional details and discussion available on edx/edx-platform#23171
ddffeaac4a