147 Rear Hatch Glass

Hi All

The rear screen of my 2002 147 seems to have spontaneously shattered some
time today! On closer inspection is appears to have broken from the inside
out, rather than had something thrown/banged against it from the outside.

As no replacement glass is available locally the car's going to spend the
night at Autoglass so it can be securely locked in their workshop, at the
insistence of my insurance company(which seems reasonable).

Has anybody else had this problem with their 147?

Regards
Ross