Merge commit '29bc7270ec2fd54707326eeee556be2fd4d86ca3' * commit '29bc7270ec2fd54707326eeee556be2fd4d86ca3': fix bug 2264186: clean up the outstanding async queries in ContactHeaderWidget.
Merge commit '29bc7270ec2fd54707326eeee556be2fd4d86ca3' * commit '29bc7270ec2fd54707326eeee556be2fd4d86ca3': fix bug 2264186: clean up the outstanding async queries in ContactHeaderWidget.