[WORKAROUND] insomnia-designer: How can I force reset my local repository?

I have three remote branches on my insomnia designer repo and am facing https://github.com/Kong/insomnia/issues/2365 when switching between the master branch and any other branch. i.e on switch, the new branch has all the changes from the master branch applied.

I want to be able to do a `git reset --hard` when I checkout to another branch.

Start by reproducing the branch-switching behavior in insomnia-designer with the three remote branches described, then compare it with the requested git reset --hard workflow. Done means switching branches no longer carries changes from master and the local repository can be forcibly reset without losing the intended branch state.

Written by the indexing model from the issue text.