[Samba] Error running "samba-tool dbcheck" after going from 4.8.6 to 4.9.2

[miguel medalha]

> hummm weird that error, because I update today and it does not give me any
>
>
> root at ccmg7:/usr/local/samba/bin# ./smbclient --version
> Version 4.9.2
> root at ccmg7:/usr/local/samba/bin# ./samba-tool dbcheck --fix
> Checking 1036 objects
> Checked 1036 objects (0 errors)

The error is related to incorrect decoding of Unicode characters, such 
as accented ones.