Nothing instantiates it: the resolver builds
ActionView::TemplateDetails::Requested, which HookTemplateDetailsRequested
extends with mobile and mobile_idx. The unused copy also built mobile_idx
from the raw argument, so string variants would not have matched.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01WymJYCdiCabZ3uTcLXFKe7