Deprecated load_app().

Adjusted several tests that used it to add apps to the app cache and
then attempted to remove them by manipulating attributes directly.

Also renamed invalid_models to invalid_models_tests to avoid clashing
application labels between the outer and the inner invalid_models
applications.

1 files changed, 0 insertions, 0 deletions

diff --git a/tests/invalid_models_tests/__init__.py b/tests/invalid_models_tests/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/tests/invalid_models_tests/__init__.py