GObject signals and hash tables

[Kalle Vahlman]

Are (string-string) hash tables supposed to work with the GObject
signal exporting at the moment?

And if so, do I need to use some black magic to get them marshalled?
The signals are delivered fine locally, but fail when marshalling for
sending to the bus:

** (process:28816): WARNING **: failed to marshal parameter 1 for
signal protocol_error

I'm using "a{ss}" as the signature, I gathered from the example that
it is the one to use for a string-string hash table.

Please make my day and say that I'm just doing something wrong ?-)

-- 
Kalle Vahlman, zuh at iki.fi