Ok, I know how to reproduce it. In the attachement you will find two files, ide-cd.c and ide-cd.c.new
If you make the original ide-cd.c and the modified ide-cd.c.new; every thing will work as it should be. If you reverse them (original = ide-cd.c.new and the modified = ide-cd.c), meld will skip many of the changes.
Ok, I know how to reproduce it. In the attachement you will find two files, ide-cd.c and ide-cd.c.new
If you make the original ide-cd.c and the modified ide-cd.c.new; every thing will work as it should be. If you reverse them (original = ide-cd.c.new and the modified = ide-cd.c), meld will skip many of the changes.
I hope it works.