guarded an expression
guarded an expression


Former-commit-id: 5d4f4778c3d7744bbd54679db0401c970219cc46 [formerly 47f7a0427c4a9c9f069a2b40462f9c081940aee3]
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gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine