[WFRP4e System] Player can gain money multiple times using /credit

[moo-man]

We noticed that when using /credit, money could be "acquired" infinite amout of times.

It should be possible to do only once per player

From: acaea3d8-d962-4579-a9bc-9771c4c5be66@anonaddy.me
foundry: 11.302
wfrp4e: 6.5.9
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