Look at nuxwin post there:
Codename andromeda (next serie 1.2.x) - Howto downgrade to 1.1.x serie?
To revert back from 1.2.x ACTUAL dev version to 1.1.13 (later, with maybe the next commit to the dev branch, this could not work)
Prior doing anything: MAKE BACKUPS ! (I'll not handle any mistaken you can do while doing to apply this fix 
)
Good luck.
