stash changes on branch switch, else it fails if any changes have been made.

advanced/Scripts/piholeCheckout.sh

@@ -54,6 +54,8 @@ fetch_checkout_pull_branch() {
   # Set the reference for the requested branch, fetch, check it put and pull it
   cd "${directory}"
   git remote set-branches origin "${branch}" || return 1
+  git stash --all --quiet &> /dev/null || return 1
+  git clean --force -d || return 1
   git fetch --quiet || return 1
   checkout_pull_branch "${directory}" "${branch}" || return 1
 }