Double tap on the black area around photo in the view behaves weird

[oleksandr]

When the view is presented and centred I try to double tap on the black area but close to the actual photo. As a result the view is zoomed the photo gets moved either up or down (depending where double tapped); when I try to move the photo back the gesture closes the view (dismisses). Expected behaviour: double tap zooms the photo and centres it.