Excluding a file in a worktree does not work

**Describe the bug**

The folder is a worktree `d:\checkouts\foo\worktrees\wt2` and the main repo is `:\checkouts\foo`

I move the cursor to a file I wish to *exclude*. I press *i* then I press *e*. An error appears


there is no `d:\checkouts\moduleworks\worktrees\wt2\.git` folder but there is a `d:\checkouts\moduleworks\.git\worktrees\wt2` where an exclude file for worktrees should live. I think the *exclude* command is just not worktree aware