bug: fixed iR when it returns a small iR
bug: fixed iR when it returns a small iR

Now iR routine always returns at least 2.

This should ensure correct functionality.

Signed-off-by: Nick Papior <81a73bca3d342ffee33d7cf845fdbf77b6553831@gmail.com>

zerothi/sisl,zerothi/sisl