Empty polygons in MULTIPOLYGON is supposed to be valid WKT

[akshaytheagrawal]

Example:
MULTIPOLYGON((()), ((2.6086630821228027 5.044008255004883, 2.6824445724487305 4.468737602233887, 2.7592148780822754 3.870166778564453, 2.5626981258392334 3.8680214881896973, 2.4898300170898438 4.466637134552002, 2.419797658920288 5.041940689086914, 2.6086630821228027 5.044008255004883)))

Not being treated valid WKT by the parse func