problem to use slashes as identifier behind mount point

Email from Giles Heron:

I'm trying to do a GET on a RESTCONF URL in ODL.

if I go to e.g. http://172.23.29.120:8080/restconf/config/opendaylight-inventory:nodes/node/xrvr-a/yang-ext:mount/Cisco-IOS-XR-ifmgr-cfg:interface-configurations/interface-configuration/act/Loopback0 then it works ok.

But if I want to get the config of a GigE interface, e.g. GigabitEthernet0/0/0/0 I hit a problem.

I've tried to use %2F instead of the "/". so I do a get on:

http://172.23.29.120:8080/restconf/config/opendaylight-inventory:nodes/node/xrvr-a/yang-ext:mount/Cisco-IOS-XR-ifmgr-cfg:interface-configurations/interface-configuration/act/GigabitEthernet0%2F0%2F0%2F0

I get no response from ODL. And no error log either.

If I deliberately put a non-existent interface in I'll get "No data exists" if the interface name (e.g. "Loopback4") is feasible or an HTTP 500 error if it isn't (e.g. "foo").

am I doing something wrong? Or is this a bug?