pushState and replaceState throw error in onMount

[david-roeger]

Describe the bug

Using pushState or replaceState in onMount throws Uncaught (in promise) TypeError: root is undefined.

(See reproduction)

Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-1gpvuv?file=src%2Froutes%2F%5B%5Bparam%5D%5D%2F%2Bpage.svelte

Logs

No response

System Info

System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 18.18.0 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 9.4.2 - /usr/local/bin/npm
    pnpm: 8.10.5 - /usr/local/bin/pnpm
  npmPackages:
    @sveltejs/adapter-auto: ^3.0.0 => 3.0.1 
    @sveltejs/kit: ^2.0.0 => 2.0.6 
    @sveltejs/vite-plugin-svelte: ^3.0.0 => 3.0.1 
    svelte: ^4.2.7 => 4.2.8 
    vite: ^5.0.3 => 5.0.10

Severity

serious, but I can work around it

Additional Information

If you await a tick before using the methods everything works fine

	onMount(async () => {
		await tick()
		replaceState('', {
			...data
		});
	})

[benmccann]

looks to have been reported in https://github.com/sveltejs/kit/issues/11492 and https://github.com/sveltejs/kit/issues/11523 as well