Bug Report : rerendering of child component highlights App (Root components)

[i0boy]

Version

6.4.3

Browser and OS info

Chrome 105 / mac arm64

Steps to reproduce

example at playground

https://sfc.vuejs.org/#eNp9kLtuwzAMRX+F1eIWqKXdUAIUXfoHXbSktpw40Aui7AyG/72iLHdqO4mXjyvyrOwtBL7MmnVMYh+nkAB1msNZOYDJBh8TvHsbYIzeQsMFCRpolJNin8i9WSRtg7kkXSZv2hgPDx/NQFIO01LyOSSDGlcljlIxL0KKfUKKH1v2yvZ9WnsJ/I7e5Z1Xala1gIp1UDKUyzuSVuyWUsBOCBx7WvyO3MeryBGPs0uT1Vyjbb+if6CO2VgxstiU2/KXx7m/8Kl0Voh6hK0C2sko13uHCSxe4UT15+ajEPkkIk/Ny7/w5OTCnGBprR+0OSmWbRTbSwdIicanczahJ5/7B7PtG2CzoX0=

What is expected?

only highlights first input element

What is actually happening?

also highlights <repl/> , root element.

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If you tell me how to fix this, I will do so and make a pull request.