Comment 3 for bug 2009871

Just in case anyone is questioning why it matters. It really boils down to two primary things IMO:

1 - Backports is not used by default in most situations, as the packages there don't have the same support or release process guarantees as far as I understand it [ https://help.ubuntu.com/community/UbuntuBackports ]

2 - If something manages the apt sources after system bootstrap using the image, and they don't included backports, they can find dependency issues that apt can't resolve automatically [ as the resolution may require a package downgrade ].

The second issue is one I actually hit [ mentioned in the main body above ].

Hope that helps give some context.

Cheers,
Just