Frequency charts fail if some names are blank

[David Platten]

Discovered this when checking frequency chart plotting works when just that chart is selected. There is a bug in sorting.js that fails to cope if one of the strings being compared is undefined.

[David Platten]

Fixed a bug in sorting.js that caused an error when one of the comparison strings was empty (undefined). Fixes issue #440

→ <<cset 229db4e97c51>>

[Ed McDonagh]

Is this the issue that Love is having, or an issue you discovered whilst looking at his issue?

[David Platten]

It's an issue I discovered whilst looking at his issue.

[David Platten]

@edmcdonagh, would you see if your develop and live systems have this problem please?

[David Platten]

I've found where this bug was fixed: it was commit #519cc98, on 19th July 2016.