Fix "git-commit -C $tag"
The scripted version might not have handled this correctly
either, but the version rewritten in C definitely does not grok
this and complains $tag is not a commit object.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t7501-commit.sh b/t/t7501-commit.sh
index d1a415a..55043d1 100755
--- a/t/t7501-commit.sh
+++ b/t/t7501-commit.sh
@@ -327,4 +327,22 @@
'
+test_expect_success 'amend using the message from a commit named with tag' '
+
+ git reset --hard &&
+ test_tick &&
+ git commit --allow-empty -m "old commit" &&
+ old=$(git rev-parse --verify HEAD) &&
+ git tag -a -m "tag on old" tagged-old HEAD &&
+ test_tick &&
+ git commit --allow-empty -m "new commit" &&
+ new=$(git rev-parse --verify HEAD) &&
+ test_tick &&
+ git commit --allow-empty --amend -C tagged-old &&
+ git show --pretty="format:%ad %s" "$old" >expected &&
+ git show --pretty="format:%ad %s" HEAD >actual &&
+ diff -u expected actual
+
+'
+
test_done
