[Mediawiki-l] MW 1.4.0 per-section editing breaks; fixed in later versions?

[Matt England]

I just discovered this problem with my MW 1.4.0 site:

* UserA begins editing section1 of a wiki page.
* UserA also begins editing section2 of a wiki page.
* While the section2 edit is still open, section1 edits are saved.
* Section2 edits are then saved.
* The changes made to section1 are lost.

Is this fixed in successive (to 1.4.0) versions of MediaWiki?

-Matt