Some materials have input.kpoints serialized using removed pymatgen.io.vaspio module

[dwinston]

This is happening before the mp_website build stage. Perhaps these are based on converted tasks? In any case, these material documents fail to deserialize to pymatgen objects if the "input" field is requested in a query.

db['materials.core'].count_documents(
    {'inputs.structure_optimization.kpoints.@module': {'$regex': '^pymatgen.io.vaspio'}})
# -> 116

@tschaume ?

[montoyjh]

Yep, every task with _mpworks_meta seems to have this issue.

[dwinston]

I patched production and staging materials collections to be correct, and I added a regression test to the test suite run against the staging db before a release.

@tschaume please close this when upstream tasks collections are fixed.