Props Mutation and Object freezing

[Hen2609]

Version: 0.6.1

Details

I was trying to mutate var tags through multiple ways, each way works as expected on the playground but not on local

Your Environment

macOs 13.0.1
node: 16.17

Steps to Reproduce

1. mutating through props:
   github repo
   playground link
   in this example I mutate the object through props and I used a button to log the current state to see it reflected in the original object
2. playground link - in this example I modify an array using pop. in local it throws an error can't change read only property 'length' of object.
3. playground link - Trying to intialize array in the onMount hook, gets an error on local saying: "cannot add property 0, object is not extensible"

for examples 2 and 3, can be reproduced using the same repo in example 1