Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

spec-08-04.test
# RUN: not yaml-bench -canonical %s 2>&1 | FileCheck %s
#
# We don't currently look at the content of literal tags.
# CHECK: error: Unknown tag handle

- !<!> foo
- !<$:?> bar