[PATCH] Extend t3404-rebase-interactive.sh test: "no changes are a nop"

Now the test "no changes are a nop" checks additionally, 
that HEAD is commit I and a symbolic ref for branch2.

The new test fails on a situation like this, for example:
$ git branch -v
* (no branch) cac536e I
   branch1     1599c04 H
   branch2     cac536e I
   master      cb54291 E

Signed-off-by: Stephan Beyer <redacted>
---
  t/t3404-rebase-interactive.sh |    4 +++-
  1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index b9e3dbd..623d784 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh

@@ -96,7 +96,9 @@ chmod a+x fake-editor.sh

  test_expect_success 'no changes are a nop' '
  	git rebase -i F &&
-	test $(git rev-parse I) = $(git rev-parse HEAD)
+	test $(git rev-parse I) = $(git rev-parse HEAD) &&
+	test $(git rev-parse I) = $(git rev-parse branch2) &&
+	git symbolic-ref HEAD
  '

  test_expect_success 'test the [branch] option' '

-- 
1.5.5.1