Fixed logictree_test.py
Fixed logictree_test.py


Former-commit-id: 8db01e83241519400a8ca0534e78cbafc887e213 [formerly de65596061cb020b4ffcd153d7d79ce10f207977]
Former-commit-id: a281b7d29e36d12db2be5b01898c43dfded25955
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine