dgoods contract set_config bug

[freehere107]

Executing set_config using the owner account will succeed, but will appear

AssertionError [ERR_ASSERTION]: 'Provided keys, permissions, and delays do not satisfy declared authorizations' == 'Missing required authority'

https://kylin.bloks.io/transaction/7988028862a4af1325b5c0337199d451ed5e83c3398c8728cc997e63125b600e

[hackfisher]

EOSIO/eos#4154