Ui-Grid Multi-sorting Feature Unneccessary

[jkmarx]

Reproduce

1. http://192.168.50.50:8000/data_sets2/c508e83e-f9ee-4740-b9c7-a7b0e631280f/#/3/
2. In the first few columns > in the column drop down menu > select a sort for each

Observe

In UI-grid with external sorting, the multi-sorting feature is ignore.
"We allow sorting by the first and second columns, so that we can show a default sort and that default sort indicator being removed even when using external sorting. Our external sort routine ignores that second column however, so sorting by it has no effect."

angular-ui/ui-grid#3483

Expect

No numbers to be shown, since this is a single column sort.

[jkmarx]

angular-ui/ui-grid#2913

[jkmarx]

With the latest ui-grid upgrade, this no longer appears to be an issue.