Merge pull request #2725 from RafaelMarinheiro/fix_grpc_query_values

utils_cache: fix pointer reference and meta_data ingestion

diff --cc src/daemon/utils_cache.c
index c53e5d1,44b8840..e63a20e
--- 1/src/daemon/utils_cache.c
--- 2/src/daemon/utils_cache.c
+++ b/src/daemon/utils_cache.c
@@@ -201,8 -201,12 +201,12 @@@ static int uc_insert(const data_set_t *
    ce->last_time = vl->time;
    ce->last_update = cdtime();
    ce->interval = vl->interval;
 -  ce->state = STATE_OKAY;
 +  ce->state = STATE_UNKNOWN;
  
+   if (vl->meta != NULL) {
+     ce->meta = meta_data_clone(vl->meta);
+   }
+ 
    if (c_avl_insert(cache_tree, key_copy, ce) != 0) {
      sfree(key_copy);
      ERROR("uc_insert: c_avl_insert failed.");