[PUSHED-3-6] fix for fdo#54558, ext entries in extlst do not need to have a corresponding normal entry

[Michael Meeks]

Hi Markus,

On Fri, 2012-09-28 at 23:24 +0200, Markus Mohrhard wrote:
> after studying the ooxml spec again the right fix for the other crash
> with the test document from fdo#54558 is that we need to handle
> missing elements for the corresponding extLst. The ooxml spec allows
> to have the ext entry but not the corresponding normal element.

	What fun :-) anyhow - helps to be robust against such oddness.

	Thanks for the fix, pushed to -3-6.

	Regards,

		Michael.

-- 
michael.meeks at suse.com  <><, Pseudo Engineer, itinerant idiot