'at' is always 0, since we can reach this point only if
!len && reflog_len, and len=at when reflog is assigned.

Signed-off-by: Felipe Contreras <felipe.contre...@gmail.com>
---
 sha1_name.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sha1_name.c b/sha1_name.c
index 3820f28..01e49a9 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -464,7 +464,7 @@ static int get_sha1_basic(const char *str, int len, 
unsigned char *sha1)
                struct strbuf buf = STRBUF_INIT;
                int ret;
                /* try the @{-N} syntax for n-th checkout */
-               ret = interpret_branch_name(str+at, &buf);
+               ret = interpret_branch_name(str, &buf);
                if (ret > 0) {
                        /* substitute this branch name and restart */
                        return get_sha1_1(buf.buf, buf.len, sha1, 0);
-- 
1.8.3.rc0.401.g45bba44

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