Why is it designed as below? it will cause history.replaceState method to be called

[wxwzl]

Version

3.4.9

Reproduction link

https://vesaas.com/?a=1&b=2&a=2

Steps to reproduce

input https://vesaas.com/?a=1&b=2&a=2 into webBroswer . then it becomes to https://vesaas.com/?a=1&a=2&b=2

What is expected?

do not trigger history.replaceState called

What is actually happening?

history.replaceState was called.

---

src/history/html5.js ensureURL (push?: boolean) { if (getLocation(this.base) !== this.current.fullPath) { const current = cleanPath(this.base this.current.fullPath) push ? pushState(current) : replaceState(current) } }

src/util/query.js `function parseQuery (query: string): Dictionary { const res = {}

query = query.trim().replace(/^(\?|#|&)/, '')

if (!query) { return res }

query.split('&').forEach(param => { const parts = param.replace(/\ /g, ' ').split('=') const key = decode(parts.shift()) const val = parts.length > 0 ? decode(parts.join('=')) : null

if (res[key] === undefined) {
  res[key] = val
} else if (Array.isArray(res[key])) {
  res[key].push(val)
} else {
  res[key] = [res[key], val]
}

})

return res }`

[posva]

Given the architecture on v3, it might be problematic to change the check to avoid calling replaceState. This was fixed on v4 and a contribution is welcome for vue router 3