Filter Groups by members attribute

[valse]

Hi, I'm trying your SimpleApp querying the groups by Postman; all works as expected but I can't filter the groups by the members attribute.

What is the correct syntax to use them? I tried these ones but with no luck:
{{SCIM_Path_Local}}/groups?filter=members.value eq "b931eb11-2263-42c5-a9c2-0232724a425f"
{{SCIM_Path_Local}}/groups?filter=members["value"] eq "b931eb11-2263-42c5-a9c2-0232724a425f"
{{SCIM_Path_Local}}/groups?filter=members[0]["value"] eq "b931eb11-2263-42c5-a9c2-0232724a425f"

Thanks