* Add ((var)) syntax for passing multi-valued variables through transclude pipeline
Introduce ((var)) attribute syntax to explicitly pass
MVVs to procedures and functions via $transclude, solving the limitation
where <<var>> always resolves to the first value only for backwards
compatibility. Also adds ((var||sep)) and (((filter||sep))) inline display
syntax for debugging MVV values, and multivalued defaults for parameter attributes
* Create pr-draft.md
* Revert "Create pr-draft.md"
This reverts commit dd116af41b.
* Update change note
* Fix linting errors
