Ownership of an empty transcript is per session and is not known until each
plugin has loaded its own data — which is why the slot mounts contributors
rather than resolving a claim up front. Taking only contributions[0] then let
a plugin that DECLINES a session suppress the one that owns it: silently,
permanently, and only for the users whose installed plugins happen to
register in that order.
Every registration is mounted and answers for itself. Declining is free; two
claiming one session render both, a visible conflict instead of a silent drop.
Brooklyn Nicholson
832ec82f75