Huh, interesting that they are collated at the end. These differences also makes sorting language dependent.
In Hungarian it's A, Á, B, C, Cs, D, Dz, Dzs, E, É, F... So Cu--- comes before Cs---
In Hungarian it's A, Á, B, C, Cs, D, Dz, Dzs, E, É, F... So Cu--- comes before Cs---
At least in Norwegian, ae, oe, and aa is also traditionally collated as if they were using these letters, so a word starting "aa" comes at the end of the alphabet, after z, oe and ae....
A B C Č D Ď E F G H Ch I J…
• „če“ goes after both „ca“ and „ci“, but „ác“ goes between „ab“ and „ad“
• „cha“ goes after „da“ and „ha“