Parameter registering fix

source/libublsettings-config.c

@@ -700,12 +700,14 @@ enum YON_CONFIG_SAVED_TYPE yon_config_register(char *key,char *config_load, char
         if (!current){
             yon_config_parameter_add_or_create_if_exists_with_data(__yon__config__strings,key,data);
             current = (yon_config_parameter*)yon_dictionary_get_last((dictionary *)__yon__config__strings);
-        } else if (!yon_char_is_empty(data)&&!strcmp((char*)current->data,(char*)data)){
+        } else if (!yon_char_is_empty(data)&&current->data&&!strcmp((char*)current->data,(char*)data)){
             save_type=YON_CONFIG_SAVED_EXIST;
             return save_type;
+        } else {
+            current->data = yon_char_new(data);
         }
     } else {
-        yon_config_parameter_add_or_create_if_exists_with_data(__yon__config__strings,key,data);
+        yon_config_parameter_add_or_create_if_exists_with_data(__yon__config__strings,key,NULL);
         current = __yon__config__strings;
     }