yui/yui3 — pull request #1837 by andrewnicols (2014-05-22 05:25:29+00:00)
Title: The group comboBase should inherit from the default if no group setting is specified

This fixes the regression caused by #1832.

The other options (combine, comboSep, maxURLLength) are also affected in a similar way, but these are not a regression introduced in 3.17 so I'll submit those in a separate PR.