[developers] interaction of orthographemic rules and multi-word rules

[bmw20]

Ann Copestake wrote:
> I haven't changed the relevant code for many months - I believe it did work 
> ... I can take a look but probably not this week (exam marking).  So I would 
> welcome confirmation it wasn't due to a more recent change that someone else 
> (Ben?) has made.
>   
There's nothing to suggest this bug is due to anything I've checked in. 
The sentence "let's dance" has failed to parse since the ERG of Nov last 
year was checked in. It seems to be a change in the grammar rather than 
the LKB that triggered this bug.