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incompete dates on AO items default to XX00 dates
Old issue raised by Jeff Kaplan in 2017 in Jira: https://webarchive.jira.com/browse/OL-317
When a book's archive.org/metadata lists publication date as "[18--?]" it shows up in openlibrary as specifically "1800".
Evidence / Screenshot (if possible)
https://archive.org/details/plaintalesfromth00kipliala
https://archive.org/metadata/plaintalesfromth00kipliala
https://openlibrary.org/books/OL7197646M/Plain_tales_from_the_hills

Proposal & Constraints
Interpret this form of date metadata differently, perhaps as "1800s"?
Stakeholders
@JeffKaplan
Related discussions on edition date issues: #806 #2039 #2711 #3391 #3421 #3496 #3746 #5333 #6021 #6038
tldr: consensus is to convert to, store, and sort on EDTF formats