BUG: SMB3.11 POSIX extensions: Absolute symlinks lose leading slash on creation

Hello,

Here is the bug report:
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Subject: BUG: SMB3 POSIX extensions: Creating absolute symlinks from 
client strips leading slash

I am experiencing a bug with the SMB3 POSIX extensions ("smb3 unix 
extensions = yes") where the leading slash of absolute symlinks is 
stripped when created from the client side.

Steps to reproduce:
1. Mount a Samba share on a Linux client with SMB3.11 and POSIX 
extensions enabled.
2. Run the following command on the client:
    ln -s /media/Raspi/Test/Reisen /media/Raspi/Reisen

Expected result:
The symlink points to the absolute path:
/media/Raspi/Reisen -> /media/Raspi/Test/Reisen

Actual result:
The leading slash is missing, creating an invalid relative path:
/media/Raspi/Reisen -> media/Raspi/Test/Reisen

Additional Info:
- Symlinks created directly on the server host work perfectly and keep 
the leading slash.
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Server: Samba Version 4.24.3-Debian-4.24.3+dfsg-1~bpo13+1
Client: Kernel: 6.12.94+deb13-amd64

Best regards,
M. Farber