if Featured Image is wider than defined Header Image, it becomes Post's header image

[senlin]

I have noticed on Child Themes of Twenty Ten that if you upload an image via the Featured Image that is larger than the defined width of your header image (by default 940x198px), the freshly uploaded image replaces the header image for that Post.

The workaround is to upload an image that is less wide than the defined width of the header image (i.e. keep it less than 940px by default).

[dd32]

This is a feature of the Twenty Ten theme.

If you don't like it, You can modify your child themes header.php to not include the code.

[senlin]

I think you misunderstood. This was not happening before 3.1.2. I am talking about the featured image becoming (read: replacing) the header image when it is wider than the defined header image width. See attached screenshot please for a visualisation.

[dd32]

I'm not sure why you didn't come accross it previously, But that is the expected behaviour of the theme, and has been since it was originally released.

[senlin]

whatever