Inconsistency in treating 0 charge staff

[qndel]

Operating System

Windows x64

DevilutionX version

Custom build (please specify commit ID)

Describe

Commit https://github.com/diasurgical/devilutionX/commit/1e8230b9b1a18c54ac7fd4c8c6dc74970596fecc

If you save and load a game with 0 charges staff:

In any other situation you don't have a selectable spell/icon for 0 charges

Comes from https://github.com/diasurgical/devilutionX/blob/master/Source/items.cpp#L2579 (no charges check) vs https://github.com/diasurgical/devilutionX/blob/master/Source/player.cpp#L3157 (charges check)

To Reproduce

1. Get a staff
2. Equip it
3. Use all charges
4. Save
5. Load
6. Check spells

Expected Behavior

No response

Additional context

No response