samba - Jul 2020 - Unable to create files containing ":" despite using vfs_catia

Hi everyone,

for making the files on my NAS accessible to Windows users as well without
restricting the file naming on my Linux machines, I need to map illegal
characters to legal ones using vfs_catia.

But despite having the mapping enabled in my [global] section, I cannot create
files or directories containing a colon from my Linux client.

I have these lines in the [global] section of my smb.conf:

```
vfs objects = catia
catia:mappings =
0x003a:0x2236,0x003f:0x0294,0x002a:0x2217,0x003c:0x276e,0x003e:0x276f,0x0022:0x02ba,0x007c:0x2223,0x005c:0x29f9
```

I've also tried various other catia_mappings from the man page or examples
around the internet, all containing a mapping for ":", none of them
worked.
I am using either smbnetfs or the KDE kio smb integration for accessing the
Samba share and creating files. Does vfs_catia only work with mount.cifs or did
I make a configuration mistake?
The way I understand what catia does is that I can still provide illegal
characters from Linux/UNIX clients, whith illegal characters being mapped for
windows clients. Is that assumption correct?

samba version used: 4.12.3+git.161.208cf9730ee-1.1

I appreciate any help on this issue, it's been bugging me for years now.

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