Fix PercentageFilter inequality bound #156
Merged
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NextDouble() ∈ [0, 1). We use a strict inequality, so a 0% rollout value sporadically returns true as 0⩽0.
The fix is to use a non-strict inequality, <. The upper bound still works: 0.999... < 1.
We noticed this internally because feature flags were occasionally tripping even with 0% rollout. This appears to be the root cause.