INFERRED_LINK_RELS is missing items links?

[guidorice]

In stac-fastapi (latest) with pgstac backend we noticed in our stac catalog that collection.links were getting lots of "rel":"items" stored, which was causing problems with API consumers- because incorrect or duplicated items links were being returned by the API.

Here is where the inferred link rels are defined:
https://github.com/stac-utils/stac-fastapi-pgstac/blob/a1b06331d5882b682c7471fbe330c1e0d18586cb/stac_fastapi/pgstac/models/links.py#L14
and note also that the items are actually dynamically constructed over here:
https://github.com/stac-utils/stac-fastapi-pgstac/blob/a1b06331d5882b682c7471fbe330c1e0d18586cb/stac_fastapi/pgstac/models/links.py#L199-L205

The fix could be as simple as adding items to that list constant, but also noting that this fix might involve touching these 3 repos:
https://github.com/search?q=org%3Astac-utils%20INFERRED_LINK_RELS&type=code

Related issue: #505

cc @geospatial-jeff @duckontheweb

[vincentsarago]

this was resolved by #640 and will be published in next stac-fastapi version

Note: Backend repo will need to be fixed