Calculating --keyspace for attack mode 1

I've read a couple of other threads about how oclHashcat calculates --keyspace. So I am aware not everything that looks like a bug is a bug but "the deep workings of oclHashcat". I have however not seen any threads about attack mode 1, combinator.

hashcat\oclHashcat32.exe -m 0 -a 0 hashlists\2 files\alla.dic --keyspace
41756867

hashcat\oclHashcat32.exe -m 0 -a 1 hashlists\2 files\alla.dic files\alla.dic --keyspace
41756867

Shouldn't the keyspace for -a 1 be ~41756867^41756867?