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-rw-r--r--src/or/routerlist.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/or/routerlist.c b/src/or/routerlist.c
index ad50c2ebda..dbf0bbd3ff 100644
--- a/src/or/routerlist.c
+++ b/src/or/routerlist.c
@@ -3783,6 +3783,10 @@ update_consensus_router_descriptor_downloads(time_t now)
if (!(ri = router_get_by_digest(rs->identity_digest)) ||
memcmp(ri->cache_info.signed_descriptor_digest,
sd->signed_descriptor_digest, DIGEST_LEN)) {
+ /* We have a descriptor with this digest, but either there is no
+ * entry in routerlist with the same ID (!ri), or there is one,
+ * but the identity digest differs (memcmp).
+ */
smartlist_add(no_longer_old, sd);
++n_in_oldrouters; /* We have it in old_routers. */
}