After importing the privatekeys, I see the blocks still show in the original wallet. I guess both wallets think they own the blocks. So.. if I spend some of the coins in the block involved, do both wallets register the transaction?
If I find this confusing, how do I make the original wallet to forget the moved block (but not all the blocks) ? I looked it up but didn't find answer. Thanks.
If you spend some of the coins in the block, the other wallet might see the tx on the blockchain, it might not. If you try to spend from both wallets, one tx will make it into a block, the other won't. You can't delete private keys from a wallet, so you can't make it forget the block you moved.
Oh well. Guess I will have to delete the old wallet and make a new wallet after moving away all the blocks from the old one.