[PATCH] add test for bug in git-mv with nested submodules

When using git-mv with a submodule it will detect that and update the
paths for its configurations (.gitmodules, worktree and gitfile). This
does not work for nested submodules where a user renames the root
submodule.

We discovered this fact when working on on-demand fetch for renamed
submodules. Lets add a test to document.

Signed-off-by: Heiko Voigt <redacted>
---
 t/t7001-mv.sh | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh
index e365d1f..39f8aed 100755
--- a/t/t7001-mv.sh
+++ b/t/t7001-mv.sh

@@ -491,4 +491,13 @@ test_expect_success 'moving a submodule in nested directories' '
 	test_cmp actual expect
 '
 
+test_expect_failure 'moving nested submodules' '
+	git commit -am "cleanup commit" &&
+	git submodule add ./. sub_nested &&
+	git commit -m "add sub_nested" &&
+	git submodule update --init --recursive &&
+	git mv sub_nested sub_nested_moved &&
+	git status
+'
+
 test_done

-- 
2.0.0.274.g6b2cd91