rtm files not copied when releasing a source distribution?

[X___]

Using LV 2021 SP1, I am trying to release my source code but realized that, in addition to the problem described in this thread, I am missing .rtm files that I took great care to move over in their respective libraries (in order that they be included in the release).

They are simply ignored during the source code distribution creation, as they would otherwise show up in the list of files generated during the build (which I am using in the script described in the quoted thread above). Note that it is not possible to see which files of a library are included in the Source Files tab of the source code distribution properties dialog, only that said library (XXX.lvlib) is included.

I suppose a workaround would be to remove this type of files (and other non .vi(m), .ctl, etc, files) from libraries and individually mark them as always included, but that kind of defeats the purpose of using libraries to provide self-contained code and asset packages.

Is that a described feature or a missing one?