The problem here (and it's still the case, I think, at least in bionic) is that update-manager uses the binary version to generate changelog URIs, and in some cases that isn't the same as the source version. It needs to use the source version instead.
The problem here (and it's still the case, I think, at least in bionic) is that update-manager uses the binary version to generate changelog URIs, and in some cases that isn't the same as the source version. It needs to use the source version instead.