Can't subscribe to headers exchange using address (rather than BURL)

Creating a receiver for the following address works from python and c++, but not from JMS (using drain example in each case):

my-headers-exchange; {link:{x-bindings:[{arguments:{'x-match':all,a:b,c:d}}]}}

The problem with JMS seems to be that though it correctly interprets the arguments and issues a bind with them in it, it issues another bind to the exchange with no arguments that fails with an error.

Also, the following also doesn't work:

my-subscription-queue; {create:always, node:{x-declare:{auto-delete:True}}, link:{x-bindings:[{queue:my-subscription-queue, exchange:my-headers-exchange, arguments:{'x-match':all,a:b,c:d}}]}}

Here the x-bindings in the link don't seem to get interpreted. However if instead they are moved to the node, that works.