The programmer wants to change the name of the EOS token to "A", so he opens the code and makes some operations.

A colleague asks, "Is it done?"

The programmer scratches his head: "Now the wallet shows the token name as 'A', but when transferring, the system prompts:

'Are you sure you want to send A tokens to the EOS contract address?'

--- So it turns out it was just a change of the token name!