[PATCH v4 09/10] builtin/replace: unset read_replace_refs

[Christian Couder <chriscool@tuxfamily.org>]

When checking to see if some objects are of the same type
and when displaying the type of objects, git replace uses
the sha1_object_info() function.

Unfortunately this function by default respects replace
refs, so instead of the type of a replaced object, it
gives the type of the replacement object which might
be different.

To fix this bug, and because git replace should work at a
level before replacement takes place, let's unset the
read_replace_refs global variable at the beginning of
cmd_replace().

Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 builtin/replace.c  | 2 ++
 t/t6050-replace.sh | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/builtin/replace.c b/builtin/replace.c
index b93d204..2336325 100644
--- a/builtin/replace.c
+++ b/builtin/replace.c
@@ -178,6 +178,8 @@ int cmd_replace(int argc, const char **argv, const char *prefix)
 		OPT_END()
 	};
 
+	read_replace_refs = 0;
+
 	argc = parse_options(argc, argv, prefix, options, git_replace_usage, 0);
 
 	if (list && delete)
diff --git a/t/t6050-replace.sh b/t/t6050-replace.sh
index 9d05101..719a116 100755
--- a/t/t6050-replace.sh
+++ b/t/t6050-replace.sh
@@ -306,7 +306,7 @@ test_expect_success 'test --format medium' '
 	test_cmp expected actual
 '
 
-test_expect_failure 'test --format long' '
+test_expect_success 'test --format long' '
 	{
 		echo "$H1 (commit) -> $BLOB (blob)" &&
 		echo "$BLOB (blob) -> $REPLACED (blob)" &&
-- 
1.8.4.1.616.g07f5c81