gd_place slug with -1

I understand the concept of WP not allowing duplicate taxonomy terms.

But in my v1 none of my locations had a -1 appended to the slug, yet in my conversion to v2 they now ALL have the -1 appended to the slug.

Did WPGD location names change in that they now conflict with existing *other* WP taxonomy terms?

Or did something happen in conversion to create two?

In php myadmin there is a ‘gd_city’ of ‘abc-1’ and a ‘city’ of ‘abc-1’ in wp_geodir_term_meta

There was also a slug of ‘abc’ in wp_terms.

But again, I guess I just don’t understand why if there were not -1 in the slugs in v1, why they were added upon conversion to v2?

Thanks.