Wrong num_times when using a specific app_label.model?

[johanovic]

When using num_times I get the total number of times a tag is used across all models and not specified to the model I am making the list for. This bug is hard to spot. A test should be written for this.

See: http://stackoverflow.com/questions/17910226/how-to-make-num-times-in-django-taggit-and-django-taggit-templatetags-dependent