FA-74132 / Feature flag rollout bucketing / Member archive

Multi-context canonical key: Colons are escaped before percent signs · case 02

Keys containing ":" become "%253A", so multi-context keys disagree with other SDKs.

Member previewVariant 2 · 3 implementations · 8 checks per implementation

Case contract

contexts maps kind -> key. Empty input or any empty key -> None. A context containing only the kind "user" is keyed by the bare user key. Otherwise join, over kinds in sorted order, kind + ":" + escaped key with ":", where escaping replaces "%" by "%25" and then ":" by "%3A".

Why this case matters

Canonical context keys feed bucketing and caches; two spellings of one context split its traffic.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
percent is escaped before colon	`"org:a%253Ab:user:50%25"`	`"org:a%3Ab:user:50%25"`	Failed

MEMBER ARCHIVE

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