Permissions for the /mythicmobs test cast <skill_name> command don't have any effect

Summary

I have a particular use case for the /mythicmobs test cast <skill_name>, in a way where I need players to be able to use it, if they have the right permission for it. I'm using the command on DeluxeMenus and I've confirmed that the issues happens, even when trying to use the command outside of it.

Steps to reproduce

• Give yourself the permission, through /lp user permission set mythicmobs.command.test.cast true
• Make sure you're not OP and don't have the admin permission, for example. Be just a regular player.
• Try to run any skill through the command.

Additional Information

• I've tried to give myself multiple permissions, such as mythicmobs.command.test, mythicmobs.command...
• I've also tried commands with both the -s or without the -s option.
• I've tried both the /mm command and /mythicmobs.

Current behavior

It doesn't matter what permission that you give to yourself, you will always get the "You don't have permission to do this!". Unless, you give yourself either op or the mythicmobs.admin permission.

Intended correct behavior

I should be able to use the command, if I have the permission for it, which is to my understanding, mythicmobs.test.cast .

Server log file

https://paste.denizenscript.com/View/137437

The issue happens both in the version on that log file and this one 5.10.1-SNAPSHOT-9ca56232.