Error occurs when repeat importing same module

[brucewar]

Describe the bug

Recently, I found that my package doesn't work well. Because of repeatedly importing the same module, It occurs an undefined reference error. Code likes:

import A from 'm.js'
import B from 'm.js'

console.log(A)
console.log(B) // undefined

Input code

import A from 'm.js'
import B from 'm.js'

console.log(A)
console.log(B) // undefined

Config

{
  "jsc": {
    "parser": {
      "syntax": "typescript",
      "dynamicImport": true
    },
    "minify": {
      "compress": true,
      "mangle": true
    }
  },
  "env": {
    "targets": {
      "chrome": "80"
    },
    "mode": "usage",
    "coreJs": "3"
  },
  "minify": true
}

Link to the code that reproduces this issue

https://play.swc.rs/?version=1.15.3&code=H4sIAAAAAAAAA8vMLcgvKlFwVEgrys9VUM%2FVyypW5%2BXKhIg6oYryciXn5xXn56Tq5eSnazhqovKdNBX09RVK81JS0zLzUlMAOxaq4VkAAAA%3D&config=H4sIAAAAAAAAA42VS47bMAxA93OKwOsu2kWLogformcQFItylMqiIVKZBIPcvbRsZzJj2ugmiPn4ESmSens5HJoztc2vw5v8lY%2FBZoL8%2BBYJ3RLbq0gaaHtLbQ4DN18WeqYReRsJqug%2BkYZt7oCrFX2f1ZuISLCoz7I%2BpOBvzwFb7IcMRE8ykYq%2F0kNi%2Bmg%2Fs4yvI%2BBcnuVHxAg27RBjyYTE0EHWHLcYox0IzMVmxct4UpsDoRZihIXBmSHjoPLkAgdMEnNNHVhnWnSgoJCh5XABzUxiiVkiSU%2FJp2IHx9J19ZI%2FWcPFxmJZiQnXeiVyWsXrCQOx8SVpJZzgRg0mOBf3s2XwJgOXnNZ2Zwxp407%2BAkgFoiVKtgfNb9Xw0k9b1n7XMiQvLcs3hUt%2Fa1km6KSoJgSvVHasDGQO2m1mcKWFsbKtdpwZb5SPggMD3kuvKK7pNXB70oLybQD0CpD7tV7rqgmYxxRu8HEgdvBvyZL1Bps1esunbUq3%2FohxJ0APfEK3oyBXwbiNs2yJ67DNS3IgrQFOVSlUwXoJyAAwmliX5ao3ZDzEo%2BkiHt%2FXxKxwfyzh3qauzvvTvmQcIlwgbrXxf4zILpWzXcauXiZ7Nb3wU2tKK4MXvn398GZIKi%2FLb02q6dGVp4RqT05vyY%2FmXWl5OZaqNYH%2BLIa1Tvd%2FDWFcTeAGAAA%3D

SWC Info output

No response

Expected behavior

B is not undefined

Actual behavior

No response

Version

1.15.3

Additional context

No response