Intersection() is not working in MySQL 5.6.12

[Mike McCutcheon]

Intersection() is documented in MySQL 5.6 but does not seem to work in MySQL 5.6.12 - MySQL Community Server (GPL).

See http://dev.mysql.com/doc/refman/5.6/en/functions-that-create-new-geometries-from-existing-ones.html#spatial-operators

Intersection() works fine in MySQL 5.1.43-snapshot20091222.

I have used the same Intersection() test script on two servers with the different versions of MySQL so I'm fairly certain that is true.

NB ST_Intersects() might be OK in 5.6 but that merely identifies whether there is an intersection or not, whereas Intersection() defines the geometry of the intersection ie the location of the intersecting point, line or polygon.

Any thoughts ?
Is anyone working on these GIS functions ?
Can someone please look at the Intersection() function in 5.6 and debug it ?
What timescale (if any) ?

I need to know the situation ASAP - even if it's bad news - so I can decide what migration direction to take. Thanks