missing JS minification

[Inqnuam]

Original code:

import { DEV } from "./constants";

function reportError() {
  if (DEV) {
    const message = "some useful message"
    throw new Error(message)
  } else {
    throw new Error("ERROR_CODE x2242");
  }
}

export { reportError };

bundled & minified output (--minify --bundle --format=esm):

function E(){if(!1){let r="some useful message";throw new Error(r)}else throw new Error("ERROR_CODE x2242")}export{E as reportError};

expected output:

function E(){throw new Error("ERROR_CODE x2242")}export{E as reportError};

Works perfectly when DEV boolean is defined in the same file

const DEV = false

function reportError() {
  if (DEV) {
    const message = "some useful message"
    throw new Error(message)
  } else {
    throw new Error("ERROR_CODE x2242");
  }
}
export { reportError };

or when there's no variable declaration inside if (DEV) condition

import { DEV } from "./constants";

function reportError() {
  if (DEV) {
    throw new Error("some useful message")
  } else {
    throw new Error("ERROR_CODE x2242");
  }
}

export { reportError };

minimal repro link https://esbuild.github.io/try/#YgAwLjI0LjAALS1taW5pZnkgLS1idW5kbGUgLS1mb3JtYXQ9ZXNtAGUAZW50cnkuanMAaW1wb3J0IHsgREVWIH0gZnJvbSAiLi9jb25zdGFudHMiOwoKZnVuY3Rpb24gcmVwb3J0RXJyb3IoKSB7CiAgaWYgKERFVikgewogICAgIGNvbnN0IG1lc3NhZ2UgPSAic29tZSB1c2VmdWwgbWVzc2FnZSIKICAgICB0aHJvdyBuZXcgRXJyb3IobWVzc2FnZSkKICB9IGVsc2UgewogICAgdGhyb3cgbmV3IEVycm9yKCJFUlJPUl9DT0RFIHgyMjQyIik7CiAgfQp9CgpleHBvcnQgeyByZXBvcnRFcnJvciB9OwoAAGNvbnN0YW50cwBleHBvcnQgY29uc3QgREVWID0gZmFsc2U7

or try to build @sveltejs for browser.

Thanks @evanw 🙏