[p2] The flag "symbol-at-source" doesn't work after issue-token。 （This is a new bug introduced by latest PR）

[shilei-wang]

Describe the bug The flag works ok in deliver version（ 6329737c7fe392d5c0374eaa020d482e81333d72 ）， but after some new PRs ，in latest commit (4ea385c8215cdbce916bd5cc7050cc93ff7964ad), it doesn't work.

To Reproduce

iriscli asset issue-token --symbol-at-source=source --symbol=xxa --family=fungible --source=native  --symbol-min-alias=alias --name=token-name --initial-supply=10000 --from=v0 --chain-id=shilei-qa --fee=0.004iris --commit

iriscli asset query-token xxa

FungibleToken xxa: Family: fungible Source: native Gateway: Name: token-name Symbol: xxa

Symbol At Source:

Symbol Min Alias: alias Decimal: 0 Initial Supply: 10000xxa Total Supply: 10000xxa Max Supply: 1000000000000xxa Mintable: false Owner: faa1l46jua9eyrg3uaaf8rwup2snq07ew02t0rwlkn



[shilei-wang]

Actually, it is a bug fix.