Autogrow with sharedSpaces on firefox

[datalink]

I use autogrow with sharedSpaces. On firefox 4 it's not working properly. In this case editor loads with default height and added 20 pixel (think it's one line-height) on every click inside editor.

It works correctly on ff 3.6 and with autogrow.html samples file (on ff 4).

[datalink]

After some new tests I find the real problem. Open _samples sharedspaces.html and set to config

extraPlugins : 'autogrow',
contentsCss : [ 'test.css']

Make file test.css with

html, body {
	height: 100%;
}

It happens in this case.

[Jakub Ś]

Has been happening on FF4 from CKEditor version 3.4.2.