WIM sets this script on every window it builds — the history frame at load, then
one per correspondent (six whisper windows in one session of his log) — and we
refused the name by raise, which killed the rest of the builder function each
time, not just the handler.
It was on the deliberate "real 1.12 kinds nothing fires raise rather than
silently accept" list. That rule is right and this was the wrong side of it: the
slot now fires, from the ScrollingMessageFrame's own scroll verbs when a scroll
actually moves the view, which is what a chat addon hangs its scroll-down arrow
on. A scroll refused at either end moves nothing and says nothing; whether the
reference fires one there is untraced.
The raise list keeps its rule and its test — `OnInputLanguageChanged` and the
movie frame's are still raises, and a name leaves that list only when something
fires it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SgstFWtn1RxEJ5kVrpgYwn
gromandClaude Opus 5
13989fb09b