Commented Unassigned: ajaxfileupload issue in ie compatibility view [27428]

I'm using HtmlEditorExtender in my project. in ie10, it's fine. but in compatibility view,i only can upload image once.by view the source code ,the image upload in HtmlEditorExtender is a AjaxFileUpload control. so i see the demo in the package,the AjaxFileUpload control has this issue too(only can upload once in ie compatibility view).
Comments: i'm using the version released in April 2013