I know in the [docs](https://nextjs.org/docs/app/building-your-application/routing/parallel-routes#closing-the-modal) it says to close the modal using router.back(). However, in our case due to how our application flows and the route structure, we are needing to close our modal using router.push(). When we close the modal with router.push() and click the button we use to open the modal, I can see the route change in the URL to the correct route, but the modal does not open. When we use router.back() it seems to close & reopen fine. Is there a difference with how .router.back() vs router.push()?