switch from master to wip, then undo the switch

gistfile1.txt

$ git status
# On branch master
nothing to commit, working directory clean

$ unco record --log=/tmp/unco.log git checkout wip
Switched to branch 'wip'

$ git status 
# On branch wip
nothing to commit, working directory clean

$ unco revert --log=/tmp/unco.log --run

$ git status
# On branch master
nothing to commit, working directory clean

$