Hi,

The oneof documentation 
<https://sites.google.com/a/google.com/protocol-buffers/user-docs/miscellaneous-howtos/oneof>
 
states that if I move an optional field into an oneof, I "may lose some of 
your information (some fields will be cleared) after the message is 
serialized and parsed"
Can you please confirm weather the value of the message is lost in the 
following use case:
I currently have:

message MyMessage {
    optional string name = 1;
}

I would like to change to this to:

message MyMessage {
  oneof my_choice {
    optional string name = 1;
    optional MyType myName =2;
  }
}


Will this ever case the existing values of MyMessage.name to be ever 
dropped?


Thanks,
Markus

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