Edit Tags admin + custom post type + custom taxonomy

[kanuck54]

I've registered the custom post type fp_toy, and the custom taxonomy fp_milestone. Both have show_ui set to true. I have the fp_milestone taxonomy associated with both fp_toy and post.

If I click Toys > Milestones in the admin, the URL is edit-tags.php?taxonomy=fp_milestone&post_type=fp_toy; but in the navigation menu, it appears that I'm in Posts > Milestones. (This is minor, but may help with diagnosis.)

Worse, in the list of Milestones, I see an automatically populated column named "Toy," which would be correct if it were indicating the number of Toys per Milestone; but it is counting all posts associated with a Milestone, not just those with a post_type of fp_toy.

Worst of all, clicking this (incorrect) post count should take me to edit.php?fp_milestone=create&post_type=fp_toy; instead it's taking me to edit.php?fp_milestone=create&post_type=post. The result is that I have no way (without URL manipulation) to see all Toys for a given Milestone.

[scribu]

The incorrect count has been mentioned before: #14076

[ericmann]

Mentioned before in #14076, which was closed as a duplicate of #14084, which was closed as invalid. Closing as duplicate.