Actor creation fails in Foundry v11

[nmichalo]

When starting a new Black Flag world and creating an actor you get the following error:

BlackFlagActor validation errors:
system:
traits: must be an Array
traitChoices: must be an Array
fetch @ foundry.js:68000

[nmichalo]

This was fixed in commit 87aa042, by @cswendrowski. Unfortunately this isn't part of the 0.0.3 tag that constitutes the most recent official release to Foundry.