Fallback capacity when no valid outputs are present
Fallback capacity when no valid outputs are present

When a merit order flexible has no valid output carrier, instead of
setting capacity to zero, set it to assume that the full output capacity
(regardless of carrier) is available.

Temporary fix for quintel/etmodel#3341

quintel/etengine,quintel/etengine,quintel/etengine,quintel/etengine