"username" hyperlinks in dashboard don't work

[Conal-Tuohy]

In the API usage dashboard, clicking on one of the username hyperlinks produces a dashboard with no values visible. Selecting the user from the drop-down option list works fine, so it's presumably just that the username parameter is being mis-encoded in some way in the hyperlink.

[Conal-Tuohy]

The user identifiers are not being URL encoded and this means that if your current filter includes a user then none of the hyperlinks will work.