A lineup imported with a very long id was offered "Copy to next page" on a
cloud strategy, and choosing it did nothing, because the copy's outbox key
would pass Hive's 255-character limit. The menu now leaves it out. A test
also pins that a throw spot whose other lineup is already on the next page
doesn't offer it, while that lineup still can go from its own landing.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>