Package information is missing in the [imported] messages. about pbf HOT 1 OPEN

I dug a little deeper so here are my temporary conclusions :

Yes there is support for PACKAGE.
You fill find it in the json structure that is passed to the compile function

var proto = {
    "syntax": 2,
    "package": "TSK",
    "imports": ["TSPMessages.proto"],
    "enums": [...],
    "messages": [......],
    "options": {},
    "extends": []
}

But the support is incomplete
Here we see that the TSK package imports definitions from TSPMessages.proto.
So where are the messages from the TSPMessages ?
There are in the proto.messages.
How can you tell apart messages from package TSK and those from package TSP (the underlying package in TSPMessages) ?
You can't. The package information is lost. It's nowhere in a message.

Here is the JSON of a message
"messages": [{
"name": "TreeNode",
"options": {},
"enums": [],
"extends": [],
"messages": [],
"fields": [],
"extensions": null
}

See ? No Package information.

from pbf.