vue_app._instance is missing in production

Steps to reproduce

• Clone repo and install dependencies using yarn;
• Run yarn preview;
• Open browser's devtools in the console tab - ./dist/index.html was updated with console.log(app.__vue_app__._instance);

Actual behavior

• app.vue_app._instance is undefined

Expected behavior

• app.vue_app._instance should have the same value then when in dev mode

Comments:

• This is important because any difference between values in dev mode and production mode can lead to unexpected behavior and make debugging harder.