keep members that don't have abundance?

[mbsimonovic]

group has 3 members: https://pax-db.org/api/proxy/protein/10090.ENSMUSP00000090820/ortholog_groups/EUARCHONTOGLIRES
but only 2 reported at WHOLE_ORGANISM: https://pax-db.org/api/proxy/protein/10090.ENSMUSP00000090820/ortholog_groups/EUARCHONTOGLIRES/
because the 3rd one doesn't have abundance info: https://pax-db.org/protein/1813039/CLK4

it's a bit misleading not to report it