Undeprecate and reimplement: require_admin_request, can_admin_request_p, require_notify_object and can_notify_object_p. Fixes in two templates (request-delete, request-change-frequency). (Many thanks to Felix Mödritscher for the patch!)
Revert massive replacement of empty list creation sentences. The use of '[list]' instead of '{}' adds semantics that could be used for performance improvements in the future, such as using a different internal representation. There is already work in this direction, avoiding the generation of the string representation during comparison of empty strings (huge thanks to Stefan Sobernig for the pointer: https://core.tcl.tk/tcl/info/44527c632ed609c2).