Why is revision on 1st import 1.1.1.1 instead of 1.1?

[Felix von Delius]

I have a question about a CVS behaviour that makes me wonder for a
long time. When I import some files with the following command:

  $ cvs import -m "1st import" some/path/in/repository mygroup start

their revision numbers are all 1.1.1.1 - after a change+commit they
become 1.2, but why aren't they they 1.1 before? Is there a way to
make them 1.1 immediately on import?

Any hints appreciated!

Cheers,
Felix