oa:annotatedAt indexed, not stored in Fedora

[nicolasfranck]

I see that the solr_writer.rb creates a date "annotated_at", using the current date of indexation.

But what if one wants to reindex all annotations ( e.g. Solr has been emptied ) from fedora into Solr? In that case all those dates are recreated, and set to the current time.

possible solutions:

• use attribute "oa:annotatedAt" from the input json-ld
• use attribute fedora:lastModified from the fedora object