[DiapDealer]

The only way you could "stop" this is to go back o 0.7.3 (and make sure all docs that contain nbsp have the proper doctype declaration). There no real differences between 0.7.3 and 0.7.4 otherwise (on Windows).

You can't change the behavior in 0.7.4 (and as others have said, both entities do the same thing). It was changed because it was the easiest way around an issue where non-breaking space unicode characters were being changed (to appease Qt) to nbsp entities in documents where there was no proper DTD to support named entities: hence the numeric entity which achieves the same thing with no need for a DTD.