Load schema and call original test to prevent randomly failing test (#919)

Co-authored-by: Aidan Haran <aharan@fusioneer.com>

Author: aidanharan

test/cases/coerced_tests.rb

@@ -97,6 +97,13 @@ def test_errors_when_an_insert_query_prefixed_by_a_double_dash_comment_is_called
 
 module ActiveRecord
   class AdapterPreventWritesLegacyTest < ActiveRecord::TestCase
+    # Fix randomly failing test. The loading of the model's schema was affecting the test.
+    coerce_tests! :test_errors_when_an_insert_query_is_called_while_preventing_writes
+    def test_errors_when_an_insert_query_is_called_while_preventing_writes_coerced
+      Subscriber.send(:load_schema!)
+      original_test_errors_when_an_insert_query_is_called_while_preventing_writes
+    end
+
     # Fix randomly failing test. The loading of the model's schema was affecting the test.
     coerce_tests! :test_errors_when_an_insert_query_prefixed_by_a_slash_star_comment_is_called_while_preventing_writes
     def test_errors_when_an_insert_query_prefixed_by_a_slash_star_comment_is_called_while_preventing_writes_coerced