repaircost & repairable

Summary

Since some updates back the day (more like years), I realized the Item option of "RepairCost" & "Repairable" are not working anymore.

Steps to reproduce

I don't believe there is anything to add (?)

Current behavior

Items which have any "RepairCost" or "Repairable" option, have no error and will be dropped/traded/spawned normally, but can be repaired without any problems or changed EXP costs.

Intended correct behavior

RepairCost should affect how much EXP it cost to repair an item (depending on what value you use). Repairable should affect how far an item is repairable or not.

Server log file

No error evolved.

Debug log snippet

Proposed fixes

Unfortunately am I also in the dark in here, don't have any experience with java plugins.