Comment 2 for bug 1752656

SRU of debian keyring is also somehow counter productive. Most likely usecase is to debootstrap unstable chroot. And for that to be done correctly, often enough most recent debootstrap from debian is required as otherwise the debootstrap might not complete, or complete incorrectly (see all the recent usrmerge changes and flip-flops).

Similarly in Ubuntu keyring we have similar issue with debootstrap. However we are trying to maintain as large overlap window as possible.

But it is impractical to SRU all keyrings ever, to all releases ever. Thus this item is won't fix.