git stash drop
'
+test_expect_success 'stash branch should not drop the stash if the branch exists' '
+ git stash clear &&
+ echo foo >file &&
+ git add file &&
+ git commit -m initial &&
+ echo bar >file &&
+ git stash &&
+ test_must_fail git stash branch master stash@{0} &&
+ git rev-parse stash@{0} --
+'
+
test_done