Umm.. Collation, like the following?
MariaDB [(none)]> SHOW COLLATION LIKE 'utf8mb4_bin';
+-------------+---------+------+---------+----------+---------+
| Collation | Charset | Id | Default | Compiled | Sortlen |
+-------------+---------+------+---------+----------+---------+
| utf8mb4_bin | utf8mb4 | 46 | | Yes | 1 |
+-------------+---------+------+---------+----------+---------
No, I can't. Everything looks good when I create objects with turkic accent in both instances.

Well, I understand that this can be bothersome for you because it has nothing to do with the app itself, but rather with the installation. As you and I know, your installations do not have this character problem. So, please don't implicate me. I posted this in hopes of getting ideas that might help solve the problem. However, you are more than welcome to not waste your valuable time on this. Please go ahead and close this issue.
Thank you for your time.