more interesting sample data

localtests/convert-utf8mb4/create.sql

@@ -6,6 +6,8 @@ create table gh_ost_test (
   primary key(id)
 ) auto_increment=1;
 
+insert into gh_ost_test values (null, 'Hello world, Καλημέρα κόσμε, コンニチハ', 'initial');
+
 drop event if exists gh_ost_test;
 delimiter ;;
 create event gh_ost_test
@@ -18,7 +20,7 @@ create event gh_ost_test
 begin
   insert into gh_ost_test values (null, md5(rand()), 'a');
   insert into gh_ost_test values (null, 'novo proprietário', 'b');
-  insert into gh_ost_test values (null, 'usuário', 'c');
+  insert into gh_ost_test values (null, '2H₂ + O₂ ⇌ 2H₂O, R = 4.7 kΩ, ⌀ 200 mm', 'c');
   insert into gh_ost_test values (null, 'usuário', 'x');
 
   delete from gh_ost_test where ta='x' order by id desc limit 1;