CLI: Offer shows XCH instead of TXCH when connected to a testnet

[paninaro]

Can confirm I also saw this in Ubuntu 20.04, same build of chia, in CLI. From a different Offer:

Summary:
  OFFERED:
    - None (Wallet ID: 2): 1000.0 (1000000 mojos)
  REQUESTED:
    - XCH (Wallet ID: 1): 1.0 (1000000000000 mojos)
Included Fees: 0

Originally posted by @Starttoaster in https://github.com/Chia-Network/chia-blockchain/issues/11086#issuecomment-1092221650