From: Junio C Hamano <hidden> Date: 2016-06-15 22:46:10
Junio C Hamano [off-list ref] writes:
The advertised new feature is that you can use the @{-1} syntax anywhere
you would use a branch name and it would work as if you typed the name of
the branch, so in that sense show-branch that shows @{-1} and does not
show the name of the branch is a bug.
I've checked "checkout -b new -t @{-1}", too. Just for completeness's
sake.