Repository sitemaps aren't fully loading automatically

[alainna]

Describe the bug Although the main sitemap for Janeway repositories is loading, the individual sitemap xml corresponding to subjects is not. This is probably due to Janeway looking for an "issue" (which repositories don't have) rather than a "subject".

Janeway version 1.5 RC4

To Reproduce Steps to reproduce the behavior:

1. Go to the main sitemap page for a Janeway repository, e.g. https://dev.eartharxiv.org/sitemap.xml
2. Note references to "issue", not "subject"
3. Click one of the listed xml links
4. See error

Expected behavior Sitemap links would properly load for each of the repository's subjects.

[alainna]

Flagging this one as request for 1.16

[alainna]

We've loaded this to our our dev environment and it appears to be working 😊

https://dev.eartharxiv.org/sitemap.xml