fix(inventory): Disallow equip same item twice #312

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (fd41645) 96.26% compared to head (4a3c4fd) 96.30%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #315 +/- ## ============================================ + Coverage 96.26% 96.30% +0.03% - Complexity 8847 8857 +10 ============================================ Files 1385 1386 +1 Lines 22534 22546 +12 Branches 1390 1392 +2 ============================================ + Hits 21693 21713 +20 + Misses 640 632 -8 Partials 201 201 ```

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