Versions:

Minecraft: 1.19.2
Forge: 43.2.8
AutoRegLib: 1.8.2-55
Quark: 3.4-402

Expected Behavior:

Applying mending to reset repair costs when the Unmending feature is enabled should always be possible. Either through a fixed application cost, or a cap

Actual Behavior:

Applying mending can become "Too Expensive!", preventing you from resetting the repair cost

Steps to Reproduce:

1. Damage and repair a tool until the repair cost becomes "Too Expensive!"
2. Try to apply mending to reset the repair cost
3. Weep.

Appears as if this is only visual, as the item can still be pulled out and its repair cost is reset, not sure why it still says too expensive though