Session not tagged with metadata

When I use export’s “Tag file with session’s metadata”, it doesn’t seem to work. I have to edit the file with a metadata editor such as EasyTag. Did I miss something, or perhaps not understand exactly what Ardour means by “metadata”?

The feature uses the metadata found under Session -> Metadata -> Edit Metadata. However, the feature had a bug, and was not working. This has been fixed in git, and should be working in the next release.