weird rendering of longtable in material

[collivier]

As far as I can see, material doesn't render longtable as the other tables which globally breaks rendering.
Tested vs 0.0.35 via:

 .. list-table:: 
    :widths: 15 20 45 20
    :header-rows: 1
+   :class: longtable

which renders as

-<table id="id32">
+<table class="colwidths-given longtable docutils align-default" id="id32">

https://www.sphinx-doc.org/en/master/usage/restructuredtext/directives.html
https://tables-with-sphinx.readthedocs.io/en/latest/csv-table.html