AAL/Python: fix fmbt.testStep() on adapter exceptions
AAL/Python: fix fmbt.testStep() on adapter exceptions

rseymour/fMBT,heivi/fMBT,mixu-/fMBT,violep01/fMBT,mlq/fMBT,acozzette/fMBT,rseymour/fMBT,acozzette/fMBT,violep01/fMBT,01org/fMBT,rseymour/fMBT,heivi/fMBT,rseymour/fMBT,mlq/fMBT,mlq/fMBT,acozzette/fMBT,mixu-/fMBT,rseymour/fMBT,01org/fMBT,yoonkiss/fMBT,mlq/fMBT,yoonkiss/fMBT,01org/fMBT,heivi/fMBT,mixu-/fMBT,mixu-/fMBT,yoonkiss/fMBT,giantpinkwalrus/fMBT,mixu-/fMBT,acozzette/fMBT,01org/fMBT,giantpinkwalrus/fMBT,heivi/fMBT,rseymour/fMBT,giantpinkwalrus/fMBT,violep01/fMBT,violep01/fMBT,giantpinkwalrus/fMBT,violep01/fMBT,heivi/fMBT,giantpinkwalrus/fMBT,01org/fMBT,rseymour/fMBT,heivi/fMBT,yoonkiss/fMBT,heivi/fMBT,mlq/fMBT,acozzette/fMBT,mlq/fMBT,mlq/fMBT,yoonkiss/fMBT