jQuery Popover content loses bound events on second setContent call.

Created by: mauvm

When using a jQuery object as content ($el.popover( { content: $form } )), the form and form elements lose their bound events on second setContent call. When the popover is shown for second time, for example.

This happens because of a jQuery memory leak fix (explanation here, proof here). jQuery's html() method (used in Popover.prototype.setContent) internally uses this.empty().append( value ); and therefore removes the content before appending it again.

I suggest changing:

$tip.find('.popover-content')[this.options.html ? 'html' : 'text'](content)

Into something like:

if (this.options.html) {
    $(content).appendTo($tip.find('.popover-content'))
} else {
    $tip.find('.popover-content').text(content)
}

Which fixes the issue. Note that even if content is a jQuery object, it is wrapped again, to support DOM nodes and HTML strings.