If you own a MkII then your boat is full of the Swedish Mobella door catches. I have now broken the third one, all in the same way. The handle fractures away from the body of the latch. They are $24 each if you order replacements from Catalina Direct but it is possible to glue the handle back together again and put the broken latch back into service. Just release the locking device which allows you to retrieve the second half of the handle from within the body of the latch. Then glue the two pieces together using epoxy and 24 hours later you can put the latch back together again. For some help with the deconstruction and reassembly of the latches scroll the images at the bottom of this page: http://www.catalinadirect.com/index.cfm?fuseaction=product.display&product_ID=1315&ParentCat=68
BTW, the Catalina Direct website makes it clear that the original construction of the hendle was too flimsy. They claim that the replacements they are selling contain a "new and improved" handle assembly.