Hypothesis property: N rule_ids × M technique_ids on one event yield N×M distinct tag UUIDs. Worked example pinned: one rule emitting (T1110, None) and (T1078, None) → two distinct UUIDs. Engine-level fan-out + replay xfail-gated behind E.3.7.
Hypothesis property: N rule_ids × M technique_ids on one event yield N×M distinct tag UUIDs. Worked example pinned: one rule emitting (T1110, None) and (T1078, None) → two distinct UUIDs. Engine-level fan-out + replay xfail-gated behind E.3.7.