[PATCH 2/2] remote: "rename o foo" should not rename ref "origin/bar"

[Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>]

When renaming a remote called 'o' using 'git remote rename o foo', git
should also rename any remote-tracking branches for the remote. This
does happen, but any remote-tracking branches starting with
'refs/remotes/o', such as 'refs/remotes/origin/bar', will also be
renamed (to 'refs/remotes/foorigin/bar' in this case).

Fix it by simply matching one more character, up to the slash
following the remote name.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
---
 builtin/remote.c  |    2 +-
 t/t5505-remote.sh |   10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/builtin/remote.c b/builtin/remote.c
index c1763ed..127cff4 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -570,7 +570,7 @@ static int read_remote_branches(const char *refname,
 	unsigned char orig_sha1[20];
 	const char *symref;
 
-	strbuf_addf(&buf, "refs/remotes/%s", rename->old);
+	strbuf_addf(&buf, "refs/remotes/%s/", rename->old);
 	if (!prefixcmp(refname, buf.buf)) {
 		item = string_list_append(rename->remote_branches, xstrdup(refname));
 		symref = resolve_ref(refname, orig_sha1, 1, &flag);
diff --git a/t/t5505-remote.sh b/t/t5505-remote.sh
index 7b6f443..57b584c 100755
--- a/t/t5505-remote.sh
+++ b/t/t5505-remote.sh
@@ -651,6 +651,16 @@ test_expect_success 'rename a remote with name part of fetch spec' '
 
 '
 
+test_expect_success 'rename a remote with name prefix of other remote' '
+
+	git clone one four.three &&
+	(cd four.three &&
+	 git remote add o git://example.com/repo.git &&
+	 git remote rename o upstream &&
+	 test "$(git rev-parse origin/master)" = "$(git rev-parse master)")
+
+'
+
 cat > remotes_origin << EOF
 URL: $(pwd)/one
 Push: refs/heads/master:refs/heads/upstream
-- 
1.7.6.51.g07e0e