Options:
--delete, -D permanently delete this deployment
--debug deploy in debug mode (don't minify, etc)
--settings set optional data for Meteor.settings
--allow-incompatible-update Allow packages in your project to be upgraded or
downgraded to versions that are potentially incompatible with
the current versions, if required to satisfy all package version
constraints.
So with --debug you should be able to achieve what you want.
Ah, on Gitter you didn’t mention that you’re deploying to Heroku. Sorry.