I am trying to automate deployment of my project using Github Actions. The workflow is something like this:

    git stash
    git stash drop
    git pull
    # install dependencies and ...

When first two lines are executed, git cannot find any local change:

    out: No local changes to save
    err: No stash entries found.

But then after git pull runs, this happens:

    err: From https://github.com/*****/*****
    err:  * branch            main       -> FETCH_HEAD
    err:  ****..****          main       -> origin/main
    err: error: The following untracked working tree files would be overwritten by merge:
    err:    thefile
    err: Please move or remove them before you merge.
    err: Aborting

Why is it happening?