Listing post tags issue

Hello,

We have found a little bug with the listing tags, step to reproduce are the following:

WP version: 4.9.6
GD: 1.6.27
GD advanced search filter: 1.4.93
GD CPT: 1.3.7

1) Create two tags (or jump to step 2)
2) Create a listing and assign two tags
Database state after point 2:
– wp_posts has the new listing
– wp_geodir_gd_place_detail has the new listing aswell, field post_tags contains the tag names divided by commas (Ex: tag1,tag2)
– wp_term_relationships contains tag<->post association
ALL GOOD
3) Change tag1 name to tag1111 from the tags management panel
Database state after point 3:
– wp_geodir_gd_place_detail post_tags field gets updated to the new tag name
ALL GOOD
4) Delete tag1111 from the tags management panel
Database state after point 4:
– wp_geodir_gd_place_detail post_tags field still contains the deleted tag “tag111)
NO GOOD

Would be good to have it always synched to what happens to tags since it’s actually a redundant data which may be queried for any reason. Ofc if we query the default WP taxonomies table we would find the correct and current tags without the just deleted one