Adding synonym to the same tag gets stuck

Bug
13

The command @techAPJ send me did not work for me, however I ran the (slightly different) commands found in: How can I delete a tag in development database (on local)?

I got the following results, trying to delete my tag “testing” which has a synonym tag: “testing”.

[1] pry(main)> t = Tag.find_by_name('testing')
=> #<Tag:0x000055a268f6f990
 id: 35,
 name: "testing",
 topic_count: 0,
 created_at: Wed, 11 Nov 2020 04:38:06 UTC +00:00,
 updated_at: Thu, 19 Nov 2020 03:44:35 UTC +00:00,
 pm_topic_count: 0,
 target_tag_id: 35>
[2] pry(main)> t.destroy!
SystemStackError: stack level too deep
from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.3.3/lib/active_record/reflection.rb:120:in `_reflect_on_association'
[3] pry(main)>