[Koha] New tarballs for 3.12.12

[Chris Cormack]

Hi all

Unfortunately I made a typo in the updatedatabase for the 3.12.12 release.
Thanks to Colin for catching it.

I have uploaded new fixed tarballs, if you have already upgraded or
installed 3.12.12, you will need to go to System Preferences, then to the
local use tab.
Then change the version syspref from
3.12112000
to
3.1212000

Sorry about that

Chris