Remove contrib.admin dependency in contrib.contenttypes
|Reported by:||Russell Keith-Magee||Owned by:||nobody|
|Has patch:||no||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
If you try to use a GenericForeignKey in your project, you gain a dependency on contrib.admin.
This is a particular problem with the combined power of the checks framework and app-loading, because if contrib.admin isn't in your project, you'll get errors.