allow for theoretical possibilty of getting shipped more than one issue and unshipping all of them
allow for theoretical possibilty of getting shipped more than one issue and unshipping all of them

mcsweeneys/solidus_subscriptions,nebulab/spree-subscriptions,mcsweeneys/solidus_subscriptions,nebulab/spree-subscriptions,nebulab/spree-subscriptions,mcsweeneys/solidus_subscriptions