Exporting and then importing a project with diff notes adds them as comments
I created issue-reproduce/project-export-diff-note!1, which has a diff comment.
I then imported it to smcgivern/project-import-diff-note!1.
This imported the diff note as a regular comment: smcgivern/project-import-diff-note!1 (comment 89752801)
Here's the export: 2018-07-23_14-46-332_issue-reproduce_project-export_export.tar.gz
Adding type
to the notes
export / import should fix it, I think?