No. There is no synchronization. This message is shown in console: ...
Are you sure you had receiver_76 in the directory before trying to resync? As block 304000 is where it rolls from 75 to 76.
Of course, I'm sure. I replaced it with this file
http://devcoin.darkgamex.ch/receiver_76.csv for the last time before synchronization.
Ok. I'm at work without info to hand, but don't think receiver_77 has been finalised/applies yet. Not a dev so someone else will have to clarify, but may want to remove that one before resync.