Hi!
Thanks for the quick reply...
The thing is I'm not certain it's specifically a MultiBit bug... It happened after I lost my internet connexion during synchronisation with the network.
Plus you have to register at github to report an issue...
Like I said, the damage is not very serious. It's just that it would be good to know what to do to prevent this sort of thing from happening...
I did have a backup, but since it's two days old, it's only relevant to the wallets I didn't touch since...
Is it OK if I send you the log files in a PM here instead of github?