When ExtractIssuePrefix returns "hq" from an ID like "hq-cv-test" (because "test" is word-like), but "hq-cv" is in allowedPrefixes, we should accept "hq" since it's clearly intended to be part of "hq-cv". This handles cases where the prefix extraction algorithm yields a shorter prefix than the user intended, but the full intended prefix is in the allowed list. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>