Managed the case of missing tagvalues [skip hazardlib]
Managed the case of missing tagvalues [skip hazardlib]


Former-commit-id: 6f83ab730eb176341c4ff24db1893a7bd4a7ebbc [formerly 584ed51428ff3a46c64464de3e0eb56f11c8b5fc]
Former-commit-id: 558a2e0a845bc2bc6472a73889b73394ec495bbf
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine