Can't publish products

[mikemurray]

Can't publish products that seem like they should be publishable. This may be an issue with the API.

api_1    |   stack: TypeError: Cannot read property 'USD' of undefined
api_1    |       at publishProductToCatalog (file:///usr/local/src/app/src/plugins/simple-pricing/util/publishProductToCatalog.js:31:43)
api_1    |       at Object.applyCustomPublisherTransforms (file:///usr/local/src/app/src/core-services/catalog/mutations/applyCustomPublisherTransforms.js:20:11)
api_1    |       at createCatalogProduct (file:///usr/local/src/app/src/core-services/catalog/utils/createCatalogProduct.js:164:27)
api_1    |       at runMicrotasks (<anonymous>)
api_1    |       at processTicksAndRejections (internal/process/task_queues.js:93:5)
api_1    |       at async publishProductToCatalog (file:///usr/local/src/app/src/core-services/catalog/utils/publishProductToCatalog.js:22:26)

[aldeed]

This is an API issue, with fix in this PR: reactioncommerce/reaction#5823