2 files changed, 8 insertions, 4 deletions
diff --git a/libnetdata/facets/facets.c b/libnetdata/facets/facets.c
index 8762b43b9..b285baf03 100644
--- a/libnetdata/facets/facets.c
+++ b/libnetdata/facets/facets.c
@@ -1,6 +1,5 @@
 #include "facets.h"
 
-#define FACET_VALUE_UNSET "-"
 #define HISTOGRAM_COLUMNS 60
 
 static void facets_row_free(FACETS *facets __maybe_unused, FACET_ROW *row);
@@ -197,14 +196,14 @@ static void facet_value_insert_callback(const DICTIONARY_ITEM *item __maybe_unus
     FACET_VALUE *v = value;
     FACET_KEY *k = data;
 
+    if(!v->selected)
+        v->selected = k->default_selected_for_values;
+
     if(v->name) {
         // an actual value, not a filter
         v->name = strdupz(v->name);
         facet_value_is_used(k, v);
     }
-
-    if(!v->selected)
-        v->selected = k->default_selected_for_values;
 }
 
 static bool facet_value_conflict_callback(const DICTIONARY_ITEM *item __maybe_unused, void *old_value, void *new_value, void *data) {
@@ -219,6 +218,9 @@ static bool facet_value_conflict_callback(const DICTIONARY_ITEM *item __maybe_un
     if(v->name)
         facet_value_is_used(k, v);
 
+    internal_fatal(v->name && strcmp(v->name, nv->name) != 0, "hash conflict: '%s' and '%s' have the same hash '%s'", v->name, nv->name,
+                   dictionary_acquired_item_name(item));
+
     return false;
 }
 
diff --git a/libnetdata/facets/facets.h b/libnetdata/facets/facets.h
index c0f7f80c8..796d15a04 100644
--- a/libnetdata/facets/facets.h
+++ b/libnetdata/facets/facets.h
@@ -3,6 +3,8 @@
 
 #include "../libnetdata.h"
 
+#define FACET_VALUE_UNSET "-"
+
 typedef enum __attribute__((packed)) {
     FACET_KEY_OPTION_FACET      = (1 << 0), // filterable values
     FACET_KEY_OPTION_NO_FACET   = (1 << 1), // non-filterable value