FA-73984 / Feature flag rollout bucketing / Member archive

Bucketing attribute selection: Numeric-looking strings are normalised · case 04

Keys "05" and "5" share a bucket, merging distinct customers.

Member previewVariant 4 · 3 implementations · 8 checks per implementation

Case contract

The bucketing identity is user[bucket_by] when bucket_by is non-empty and present, else user["key"]. Booleans, None and non-scalar values are unbucketable -> [None, 0]; integral floats use their integer form, other floats are unbucketable; ints and strings are used verbatim via str(). Return [identity, crc32(flag_key + "." + salt + "." + identity) % 100000].

Why this case matters

Bucketing by organisation or device keeps whole accounts in one variant; the identity must be stable.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
leading-zero string kept verbatim	`["7", 94092]`	`["007", 42108]`	Failed

MEMBER ARCHIVE

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