When updating parameters, if there is an "array" param that has successfully validated when updating other parameters I get the error:

Warning!

Validation failed: Value is invalid array

I think this is because Foreman is escaping the JSON in the array again (double escape) which makes it invalid.

See attached screenshot for example.

Stack trace is:
ActiveRecord::RecordInvalid
Validation failed: Value is invalid array
app/models/concerns/host_common.rb:34:in `block in lookup_values_attributes='
app/models/concerns/host_common.rb:27:in `each_value'
app/models/concerns/host_common.rb:27:in `lookup_values_attributes='
app/controllers/hosts_controller.rb:112:in `block in update'
app/models/taxonomy.rb:49:in `block in no_taxonomy_scope'
app/models/taxonomy.rb:56:in `block (2 levels) in as_taxonomy'
app/models/concerns/foreman/thread_session.rb:143:in `as_location'
app/models/taxonomy.rb:55:in `block in as_taxonomy'
app/models/concerns/foreman/thread_session.rb:108:in `as_org'
app/models/taxonomy.rb:54:in `as_taxonomy'
app/models/taxonomy.rb:48:in `no_taxonomy_scope'
app/controllers/hosts_controller.rb:104:in `update'
app/models/concerns/foreman/thread_session.rb:33:in `clear_thread'
lib/middleware/catch_json_parse_errors.rb:9:in `call'!!