Here's what I did:
1) Installed Bitshares
2) Register account on blockchain
3) Wait for blocks to sync
4) Sync crashed over and over, finally it hung (bug: if Ubuntu's lock screen kicks in, the sync hangs)
5) Deleted ~/.Bitshares folder
6) Resynced blockchain. This time it worked
7) Error: Account name already registered.
Is there any way to retrieve my account from step 2, even though I deleted the folder in step 5? I have the password I used.