Htbaa/Filesys-Notify-Simple — comment on commit 16d10121a575639b97de4a670fdd510de3bc24b9
File:  line 0
By Htbaa:

Because at some points an array ref is supplied to `_full_scan` and at some points not.

Try printing the path in the original loop. One entry will be a normal path, the second will be the path with the array ref address appended to it.