Yes but seeing how this isn't about coins as much as it is about transactions. The trxns on the "losing" chain would just from memo/yours will disappear from the "winning" chain
If I understand it correctly, memo and yours writes the transactions in both chains, so nothing can get lost.
I dont think Memo spend your coin twice. Probably memo does not write the transactions into both chains. I was wrong. Sorry. I suppose memo use ABC-chain.
Not necessarily. They said on twitter that they will follow Moneybutton's suggestion which might lead to a loss of split transactions until memo decides which implementation to support
