Commented Issue: AsyncFileUpload fails on the third item in a Repeater [26975]

Using .NET 4.0 and AjaxControlToolkit 4.1.50508.0, <pages controlRenderingCompatibilityVersion="4.0" clientIDMode="AutoID" />, I see that AsyncFileUpload will always kick back "The file attached was invalid" when in the third index of a Repeater (only index 3 is affected, greater indexes work correctly).

I've attached a screenshot and a sample project showing the error in about as few lines as possible.
Comments: Now a fork with a pull request. http://ajaxcontroltoolkit.codeplex.com/SourceControl/network/forks/geostats/AsyncFileUploadRepeaterThirdItemFix/contribution/2069