'bp-activity-oldestpage' cookie behavior, when more than a single browser's tab is op


In the Social Theme's global.js file, there is a function that handles the activity's 'load-more' button, and it uses the cookie 'bp-activity-oldestpage'. This cookie determines the current activity page, and the next page that should be loaded. (The relevant code is attached below).

jq('div.activity').click( function(event) {
		var target = jq(event.target);

		/* Load more updates at the end of the page */
		if ( target.parent().hasClass('load-more') ) {
			jq("#content li.load-more").addClass('loading');

			if ( null == jq.cookie('bp-activity-oldestpage') ) //what if this cookie has already been set on a different tab?
				jq.cookie('bp-activity-oldestpage', 1, {
					path: '/'
				} );

			var oldest_page = ( jq.cookie('bp-activity-oldestpage') * 1 ) + 1;

			jq.post( ajaxurl, {
				action: 'activity_get_older_updates',
				'cookie': encodeURIComponent(document.cookie),
				'page': oldest_page
				jq("#content li.load-more").removeClass('loading');
				jq.cookie( 'bp-activity-oldestpage', oldest_page, {
					path: '/'
				} );
				jq("#content ul.activity-list").append(response.contents);

			}, 'json' );

			return false;

My question is:
Do you handle, (and if so, how do you handle) multiple user tabs on the same browser?

For example:
If a user opens an activity page, and clicks the load more button several times. (the 'bp-activity-oldestpage' will then have a value that is greater than 1). Then, the user may open a different activity page, and click the 'load-more' bottom on that page also.
What will happen then?