Review Request: Prevent KConfigGroup::revertToDefault from marking the kconfig as dirty if there's nothing to do

[Oswald Buddenhagen]

On Wed, Nov 28, 2012 at 03:43:46PM -0000, David Faure wrote:
> I don't see a KConfigData class, not a revertToDefault outside of
> KConfigGroup, so I wonder what you saw and where...
> 
ah. that's because it's called KEntryMap in fact. it's in a file called
kconfigdata.h.