[Samba] user's home shares doesn't work with Samba 4.8.3

[Dāvis Mosāns]

Hello!

I just upgraded Samba 4.8.2 to 4.8.3 on Arch Linux and user's home shares
doesn't work anymore.
Downgrading back to 4.8.2 they work again.

On samba server

smb.conf
...

[homes]
   comment = Lietotāju Mapes
   browseable = no
   writable = yes
   valid users = @Lietotāji
   invalid users = Guest, @Guests

...

$ id
uid=1004(Dace) gid=1004(Dace) groups=1004(Dace),100(Lietotāji)

$ grep Dace /etc/passwd
Dace:x:1004:1004:Dace:/home/Dace:/bin/bash

$ net rpc share
Enter WGRP\Dace's password:
...
dace




On windows host


> net use Z: \\192.168.1.3\Dace /USER:Dace
Ievadiet 'Dace' paroli, lai izveidotu savienojumu ar '192.168.1.3':
System error 53 has occurred.

The network path was not found.


In /var/log/samba/client.log there appears

[2018/07/04 18:34:19.838134,  0]
../source3/smbd/service.c:774(make_connection_snum)
  canonicalize_connect_path failed for service dace, path /home/SMBSRV/dace



I noticed a difference that with working 4.8.2 version

$ net rpc share
Enter WGRP\Dace's password:
...
Dace

(notice share name with uppercase rather than lowercase)


Don't really know what would be needed to investigate this further so let
me know what additional details should I provide.

I also noticed that if I install samba 4.8.3 right after 4.8.2 without
reboot (but just restart smbd) then user's shares does work but after
reboot they don't anymore.

Thanks!