travis: run tests with GIT_TEST_SPLIT_INDEX

diff --git a/read-cache.c b/read-cache.c
index 1248a09de4212747aa01f477ee090708731e33fe..5cd14e2f726489f331425ff762068bb1c184a665 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -2199,7 +2199,7 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
        struct stat st;
        struct ondisk_cache_entry_extended ondisk;
        struct strbuf previous_name_buf = STRBUF_INIT, *previous_name;
-       int drop_cache_tree = 0;
+       int drop_cache_tree = istate->drop_cache_tree;
 
        for (i = removed = extended = 0; i < entries; i++) {
                if (cache[i]->ce_flags & CE_REMOVE)