Disable injection for fresh apps

bin/steps/django/init

@@ -5,7 +5,10 @@ PROJECT=$(dirname $SETTINGS_FILE)
 MANAGE_FILE=$(find . -maxdepth 3 -type f -name 'manage.py' | head -1)
 MANAGE_FILE=${MANAGE_FILE:2}
 
-echo "         FRESH_APP: $FRESH_APP"
+if [ "$FRESH_APP" ]; then
+    # Legacy Django injection for existing applications.
+    touch .heroku/injection_disabled
+fi
 
 # Disable injection for new applications.
 if [ -f .heroku/injection_disabled ]; then