增加井号重复判断

‘liusuyi’

2023-07-03 0177aa684d935d39e460719ac42914d96910a822

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Phil Booth <pmbooth@gmail.com> (https://philbooth.me/)
Rowan Manning (https://github.com/rowanmanning)
Benedikt Rötsch (https://github.com/axe312ger)