Incorrect ordering with utf8_bin and utf8mb4_bin collations

In MySQL 5.6 the utf8_bin and utf8mb4_bin collations were broken such that they ordered by only the high byte of the utf8 character (meaning ASCII sorts as though all characters were 0, resulting in random sort). This was fixed in the following commit (and maybe others):

https://github.com/darnaut/mysql-server/commit/5fe5a5b

This issue affects MariaDB 10 as well. See the attached simple test for this sorting bug.