[wp-testers] Problem with term_group assignments?

[Ryan Boren]

On 9/17/07, Bruce Keener <brucekeener at gmail.com> wrote:
> In looking over the data for term_group, it appears that most of my
> categories are assigned a value of '1' and that most of my tags are assigned
> a value of '0'. However, there are some exceptions to this. For example, at
> one time I had a category named iPod, deleted it some time back, but
> recently added a tag named iPod and this tag has a term_group data value of
> 1. Similar situation for the former category named Blogging, which is now a
> tag.
>
> Should I manually change these two entries to have a value of 0?
>
> Note that it is possible that this phenomena is due to the fact that I
> installed a 2.3 alpha a couple of months back, uninstalled, and went back to
> 2.3 a couple of weeks ago. So, there was a time when my wp_term related
> entries existed but were not being updated. Hence, this sort of problem
> might be unique to us "reinstallers" but wanted to point it out in case it
> is broader.

This is unique to reinstallers.  During upgrade, if a term with the
same slug already exists, we create a unique slug for that term and
put it in the same term group as the term it collided with.

I'm wondering if we should truncate the taxonomy tables when upgrading
to make sure we catch these situations where someone previously tried
an upgrade.