message: Use debug_assert in TagMap::new
  The function is used in `static` context where using `Result` is
  problematic. This way duplicate tags will be reported in testing, and no
  panic happens in release.
diff: @@ -83,7 +83,7 @@ impl TagMap {
  let tag_id = tag.get_id();
  let variant = tag.get_variant().to_string();
  let prev_item = id_to_tag.insert(tag_id, tag);
  - assert!(
  + debug_assert!(
  prev_item.is_none(),
  "Tag id: 0x{:X} is already present in TagMap",
  tag_id
  