[SOLVED] Update to xbian-package-repo wiped all other apt sources

[palswim]

I had been running my XBian system with some additional apt sources, and had managed to have everything in good working order. However, after my latest update, I noticed that all files in my /etc/apt/sources.list.d/ directory had vanished, except for the xbian.list files. I know my latest update included xbian-package-repo, so I'm pretty sure the installation of that package caused the deletion of every non-XBian source.

Did this happen by design? If so, did this happen because of the problem with the mountall package?

I can re-add my additional repositories, but I don't want to have to battle with XBian updates removing the files for those sources constantly.