Comment # 4 on bug 1120838 from Thorsten Kukuk

(In reply to William Brown from comment #3)
> I have performed the following steps:
> 
> # transactional-update shell

Even if Ignaz mentioned it, never use "transactional-update shell". And it is
not necessary to use it.
Please follow what I told you and run transactional-update in non-interactive
mode.

> # zypper ar obs://network:samba:STABLE network:samba:STABLE

# zypper ar -f obs://network:samba:STABLE network:samba:STABLE

If you don't enable refresh, zypper will always work with outdated data.

# transactional-update pkg update samba

=> accept the key.

But most likely you need something like:
# transactional-update pkg install samba-<exact version>


Resolve the dependency and vendor change conflicts, that's all.