1. Create two separate schema projects; for example one online and one offline from the same server
2. Open schema editor, choose the online project, select 'apache' schema, right click, choose Export -> Schemas as OpenLDAP files. See the generated file.
3. Open the offline project, export 'apache' schema as described above
4. Files differ although the schema is the same!
It seems that the order of entries during schema export is random. It would be correct if entries are sorted by type first, then by OID.
Note that the random order may cause problems when the exported schema is used in some directory servers - you may have a parent object class appear after its child object class. As result a directory server will report schema as invalid due to 'missing' parent object class.