fix(reactivity): pass oldValue to computed getter

[yangxiuxiu1115]

fix #11812

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	100 kB (+8 B)	37.7 kB (+4 B)	33.9 kB (-2 B)
vue.global.prod.js	159 kB (+8 B)	57.6 kB (+4 B)	51.2 kB (-8 B)

Usages

Name	Size	Gzip	Brotli
createApp	55.2 kB (+8 B)	21.2 kB (+4 B)	19.4 kB (+36 B)
createSSRApp	59.1 kB (+8 B)	22.9 kB (+3 B)	20.9 kB (+34 B)
defineCustomElement	59.9 kB (+8 B)	22.8 kB (+6 B)	20.8 kB (+49 B)
overall	68.9 kB (+8 B)	26.3 kB (+5 B)	23.9 kB (+1 B)

[pkg-pr-new]

Open in Stackblitz

@vue/compiler-core

pnpm add https://pkg.pr.new/@vue/compiler-core@11813

@vue/compiler-dom

pnpm add https://pkg.pr.new/@vue/compiler-dom@11813

@vue/compiler-sfc

pnpm add https://pkg.pr.new/@vue/compiler-sfc@11813

@vue/compiler-ssr

pnpm add https://pkg.pr.new/@vue/compiler-ssr@11813

@vue/reactivity

pnpm add https://pkg.pr.new/@vue/reactivity@11813

@vue/runtime-core

pnpm add https://pkg.pr.new/@vue/runtime-core@11813

@vue/runtime-dom

pnpm add https://pkg.pr.new/@vue/runtime-dom@11813

@vue/server-renderer

pnpm add https://pkg.pr.new/@vue/server-renderer@11813

@vue/shared

pnpm add https://pkg.pr.new/@vue/shared@11813

vue

pnpm add https://pkg.pr.new/vue@11813

@vue/compat

pnpm add https://pkg.pr.new/@vue/compat@11813

commit: cb9c0a5

[ferferga]

I can confirm that this fixes the issue! Thank you very much for the quick fix ❤️🚀!