Issue with sorting in _.sortBy.

[eraser88]

If i have objects like these :
[{"1", 100}, {"1", 1}, {"1", 2}, {"1", 200}]
If i sort the elements using both the columns then the result should be :
[{"1", 1}, {"1", 2}, {"1", 100}, {"1", 200}]
But in the current code the result that is displayed is :
[{"1", 1}, {"1", 100}, {"1", 2}, {"1", 200}]

Which i think is an issue ?

[eraser88]

I have sent a pull request to fix this issue here Let me know what you guys think. Thanks.

[jgonggrijp]

Closing for the reasons discussed in #1880 and #2846.