If define model with no actions the model cannot be loaded

[relund]

w<-binaryMDPWriter("test_")
w$setWeights(c("Duration", "Net reward"))
w$process()
w$stage()
for (ii in 2:10 ) {
w$state(label="test")
w$endState()
}
w$endStage()
w$endProcess()
w$closeWriter()

mdp<-loadMDP("test_", verbose = T)
mdp