Commented Issue: AutoCompleteExtender & RequiredFieldValidator problem inside PopupControlExtender after upgrading to ver: 3.0.30930.28736 [25642]

i'm using toolkit version 3.0.20820.16598,
the page contains an UpdatePanel containing an AutocompleteExtender and a RequiredFieldValidator with their related TextBoxes, everything is OK and working fine.

after upgrading to version 3.0.30930.28736 these problem occured:
1. RequiredFieldValidator is always in invalid state ! even if related textbox has a value.
2. AutoCompleteExtender not functioning, no web service call,
Comments: It seems like AutoCompleteExtender when inside an UpdatePanel works in IE and Firefox but not in Chrome or Safari.