echo "$at" | grep "+0000"
'
+test_expect_success 'am into an unborn branch' '
+ rm -fr subdir &&
+ mkdir -p subdir &&
+ git format-patch --numbered-files -o subdir -1 first &&
+ (
+ cd subdir &&
+ git init &&
+ git am 1
+ ) &&
+ result=$(
+ cd subdir && git rev-parse HEAD^{tree}
+ ) &&
+ test "z$result" = "z$(git rev-parse first^{tree})"
+'
+
test_done