Bibliographic item auto-fetch cut-off date to prevent auto-fetching items post-publication

[ronaldtse]

Now that we are increasingly encoding extant documents there is a real need to "freeze" the bibliographic entries accessible to those documents at their publication/drafting date.

For example, in ISO 80000-10:2019 there is a citation to IEC 80000-6. This document cites IEC 80000-6, which was published in 2008. However, when generating ISO 80000-10:2019 via Metanorma it fetches IEC 80000-6:2022 and adds a note that it is "under preparation" (actually it is also wrong because IEC 80000-6:2022 is already published)

Original:

Using auto-fetch:

It would be most reasonable to add a bibliography "auto-fetch cut-off date" which indicates that we should not auto-fetch bibliographic items that are published after this cut-off date.

Originally posted by @ronaldtse in https://github.com/metanorma/iso-iec-80000/issues/17#issuecomment-1504372622

[andrew2net]

@ronaldtse do we need to add a cut-off option?

$ relaton fetch 'IEC 80000-6' --cut-off 2008

[ronaldtse]

@andrew2net I think so, maybe we call it the publication date?

$ relaton fetch 'IEC 80000-6' --publication-date-before 2008
$ relaton fetch 'IEC 80000-6' --publication-date-after 2002
$ relaton fetch 'IEC 80000-6' --publication-date-before 2008-02-02 --publication-date-after 2002-01-01