Custom mirror pool - doubled entries
As described on forum it is possible to create duplicated entries in both mirrorpool and then mirrorlist.
Steps to recreate
Reset the entire pool
sudo pacman-mirrors -call -mrandom
Then do a country selection and select everything on the list
sudo pacman-mirrors -c Germany,United_Kingdom -i
Then run a new
--interactive but without the country selection
sudo pacman-mirrors -i
Now a list with doubled entries will be shown and it also appears to be only mirrors which offers several protocols.