Add fix for users with multiple licenses

lms/djangoapps/licenses/models.py

@@ -42,7 +42,10 @@ def get_courses_licenses(user, courses):
 
 def get_license(user, software):
     try:
-        license = UserLicense.objects.get(user=user, software=software)
+        # TODO: temporary fix for when somehow a user got more that one license.
+        # The proper fix should use Meta.unique_together in the UserLicense model.
+        licenses = UserLicense.objects.filter(user=user, software=software)
+        license = licenses[0] if licenses else None
     except UserLicense.DoesNotExist:
         license = None