old_contents: 
  from agagd_core.models import Authteam, Authuser, Changelog, Chapter, Chapters, CommentsAuthors, Country, Games, Members, MembersRegions, Membership  
  from django.contrib import admin
  
  class MemberAdmin(admin.ModelAdmin): 
      list_display = ('member_id', 'full_name', 'join_date', 'chapter', 'chapter_id')
  
  admin.site.register(Authteam)
  admin.site.register(Authuser)
  admin.site.register(Changelog)
  admin.site.register(Chapter)
  admin.site.register(Chapters)
  admin.site.register(CommentsAuthors)
  admin.site.register(Country)
  admin.site.register(Games)
  admin.site.register(Members, MemberAdmin)
  admin.site.register(Membership)
  admin.site.register(MembersRegions)
  
new_contents: 
  from agagd_core.models import Chapter, Chapters, CommentsAuthors, Country, Games, Members, MembersRegions, Membership
  from django.contrib import admin
  
  class MemberAdmin(admin.ModelAdmin): 
      list_display = ('member_id', 'full_name', 'join_date', 'chapter', 'chapter_id')
  
  admin.site.register(Chapter)
  admin.site.register(Chapters)
  admin.site.register(CommentsAuthors)
  admin.site.register(Country)
  admin.site.register(Games)
  admin.site.register(Members, MemberAdmin)
  admin.site.register(Membership)
  admin.site.register(MembersRegions)
  
subject: remove stale membership references in admin.py