Failed to work with NFS4ACL's group rules

[ArcticLampyrid]

read_dir Forbidden if the user isn't its owner. (with setuid=true). It's strange.
I'm using TrueNAS-SCALE-22.12.3.3, the acl of my folder is:

• root: full control
• group Foo: read-only

And the user Test is in the group Foo.

But it showed that "read_dir Forbidden" unless I changed the owner of my folder to user Test.

[ArcticLampyrid]

I'm using nfs4acl

[ArcticLampyrid]

It seems that when we set User Test in ACL directly, it works properly. But when using Group, it fails.

Note: I've logged in with SSH via the user and checks that I can access the folder with ACL rules properly.

[ArcticLampyrid]

webdav-server-rs/src/unixuser.rs

Line 97 in 50318a6

groups_vec.extend(groups.iter().map(|&g| g as u32).filter(|&g| g != user.gid));

After removing the filter, it works fine.