Migration 2.0.x -> 2.1.x : invalid structural object class chain

[Peter Van Biesen <peter.vanbiesen@vlafo.be>]

Hello,

when I migrated from 2.0.23 to 2.1.14 I got errors when importing my 
data. This was due to the schemachecking, apparently only one toplevel 
structural objectclass was allowed. I've read the rfc 2252 however, and 
I can't figure out why this restriction was imposed.

This discussion has probably been done before the release of the 2.1.x, 
but I can't seem to find a trace of it. Can anyone direct me to a 
document of some sort that motivates this decision ?

Thanks !

Peter.