apt-0.8.11.5ubuntu3~tetet2 from your PPA repository does seem to fix the issue.
I tried it with
Acquire::ssh::Options { "-F"; "/etc/apt/ssh/ssh_config" };
on 11.04 Natty alpha-3 live image. If necessary I can test the changes on 10.04 Lucid (and 10.10 Maverick), too, at least if you can provide the binary packages.
apt-0.8. 11.5ubuntu3~ tetet2 from your PPA repository does seem to fix the issue.
I tried it with :ssh::Options { "-F"; "/etc/apt/ ssh/ssh_ config" };
Acquire:
on 11.04 Natty alpha-3 live image. If necessary I can test the changes on 10.04 Lucid (and 10.10 Maverick), too, at least if you can provide the binary packages.