Next Sibling combined with :last is failing.

[marioestrada]

At techspot.com I have a selector that runs after more stories have been loading using ajax and where the page should scroll to the first loaded story, but with 1.4.3 it is no longer working.

The selector is '.next_page:last + .headline_story' it used to work on 1.4.2 but not anymore, it doesn't find any objects. Using the alternative $('.next_page:last').next('.headline_story') works but still I think this is a bug since it used to work.

[marioestrada]

Here is a test case: ​http://jsfiddle.net/Xy9GL/ with the + selector not working.

And working using .next(): ​http://jsfiddle.net/n5Nh5/1/

[snover]

​valid test case

[cowboy]

I threw together this tiny plugin to help debug issues like this:

// Log the selector used to select elements to each selected element,
// otherwise to the body. Hover over logged selectors to highlight
// stuff all fancy-like (note: don't select SPAN elements because this
// creates them all over the place!) - Cowboy

$.fn.logSelector = function() {
    var elems = $( '<span>' + this.selector + ' [' + this.length + ']</span>' )
        .appendTo( this.length ? this : 'body' );
    
    this.length && elems.hover(function(e){
        elems.parent().andSelf().toggleClass( 'hover', e.type === 'mouseenter' );
    });
    
    return this;
};

See it in use here: ​http://jsfiddle.net/cowboy/skGZx/

[cowboy]

Also, the link in my last comment has a bunch of test cases that fail in 1.4.3 but work in 1.4.2 - please add more!

[jeresig]

Make sure that +, >, ~ leading, rooted, selectors go to the old engine. Thanks to @rkatic for the catch! Fixes #7220.

Changeset: 424500bcf068a234b13cd9ef33d94580c35eeb86

[john]

#7277 is a duplicate of this ticket.