This is implement in an extremely hacky way due to poor DBIx feature
support. Ideally, what we'd need is a way to tell DBIx to ignore the
errormsg column unless explicitly requested, and to automatically add a
computed 'errormsg IS NULL' column in others. Since it does not support
that, this commit instead hacks some support via method overrides while
taking care to not break anything obvious.
In 1bd195a513 strictDeps was set for the
Hydra package. As a result, `checkInputs` aren't available anymore in
the local dev-shell which is the sole purpose of foreman, to start
services and a database for development.