At CRM 2015 Update 0.2 Searchable fields have changed how matching is done

We have a custom entity with a keywords field so we can use the search bar in a view to match on any of the words.

We format the field to be comma separated with a leading and trailing comma e.g.

Key words of one two three are formatted as :

,one,two,three,

If the keyword field is added as a search field on the quick lookup view for the entity then:

@2011 this allows matching the above record by entering one of the three words above :

One

Two

Three.

@2013 only the first word will match the record

@2015 Update 0.1 the same as @2013 

@2015 Update 0.2 The search stops working unless the leading comma is removed and then only matches on the first word.

Question: Is there a new delimiter in 2015 which will provide the same functionality ?

Question: is there another way to achieve this keywords functionality ?

I have the latest CRM 2015 on-prem - Update 0.2.