(large) less file hangs VS2015 when opening block

[robbaman]

I have a large .less file. When opening it in VS2015 with WE2015 enabled Visual Studio hangs with the dreaded "Visual Studio is busy" notification when I have a block like this

.product-select-block {
    .content-offset-inner {
        padding: 20px;
    }
}

and try to change it into the following:

.product-select-block {
    .content-offset-inner {
        padding: 20px;
        h3 {
            margin: 0;
        }
    }
}

The editor freezes completely as soon as I type the open { of the h3.

.product-select-block {
    .content-offset-inner {
        padding: 20px;
        h3 { // *hangs as soon as I type this {*
    }
}

I would add the file, but it only allows images. Note that when I disable WE2015 the problem goes away.

[madskristensen]

I can't repro this. Can you please send the big .less file to madsk at Microsoft com?