taxonomy bug: error message not showing numbers of entities that are using the taxonomy

[troughc]

In the NAC production site, in the list view of a taxonomy, the error message is wrong when you try to delete a taxonomy.
It should show numbers of entities that are impacted and it does not.
Please check all tasxonomies but I found these four have wrong messages:

• Event type (in screenshto it shows 0 but this is not true)
• Organisation type
• Performance genres (both)