Fix case of multiple scheduled delays with exact same date that is followed by a digest

Editor assessment

The subject describes a genuinely specific scheduling scenario, multiple delays with the same exact date followed by a digest, so the content is good, but the single 100-plus-character run-on sentence with a doubled 'fix' makes the reader work for it. No scope, no body, and nothing explains what went wrong in that scenario, duplicated digests or dropped events, or how the correction behaves. Fix is the right type. Hygiene suffers mainly on length. Understandable with effort, valid, and thin on the mechanism.