chore: More careful cleanup

Author: krlmlr

Diff for: vendor-one.sh

@@ -22,9 +22,9 @@ else
 fi
 
 upstream_dir=.git/${project}
-rm -rf "$upstream_dir"
 
 if [ "$upstream_basedir" != "$upstream_dir" ]; then
+  rm -rf "$upstream_dir"
   git clone "$upstream_basedir" "$upstream_dir"
 fi