[PATCH 1/3] repo_read_index: don't discard the index

Have 'repo_read_index()' behave more like the other read_index family of
functions and don't discard the index if it has already been populated.

Signed-off-by: Brandon Williams <redacted>
---
 repository.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/repository.c b/repository.c
index edca90740..8e60af1d5 100644
--- a/repository.c
+++ b/repository.c

@@ -235,8 +235,6 @@ int repo_read_index(struct repository *repo)
 {
 	if (!repo->index)
 		repo->index = xcalloc(1, sizeof(*repo->index));
-	else
-		discard_index(repo->index);
 
 	return read_index_from(repo->index, repo->index_file);
 }

-- 
2.13.2.932.g7449e964c-goog