Here's a patch that addresses the issue for me:
$ schroot -c test-recommends-trusty-amd64 apt-config dump APT::Install-Recommends APT::Install-Recommends "0";
I didn't expose it as a command line argument, though I could add it if it's desired; mk-sbuild already has a non-trivial amount of possible arguments, so my initial instinct was to resist the urge to add another to the pile.
Here's a patch that addresses the issue for me:
$ schroot -c test-recommends -trusty- amd64 apt-config dump APT::Install- Recommends Install- Recommends "0";
APT::
I didn't expose it as a command line argument, though I could add it if it's desired; mk-sbuild already has a non-trivial amount of possible arguments, so my initial instinct was to resist the urge to add another to the pile.