popover on 2nd click

[DiponRoy]

1.clicked 1st time on a button to show popover, the popover is visible 2. clicked the dismiss button(inside popover), the popover not visible anymore 3. clicked 2nd time on the same button to show popover, nothing happened. 4. clicked 3rd time on the same button to show popover, the popover is visible again

after this commit, the popover will also be visible at 2nd click