I'm not sure if the dev build fixes this (cause I don't know my way around github and can't find anything labeled "dev build"), but...
taking a fresh KSP install,
adding FAR,
then launching the scenario where jeb is a bit away from his capsule, bring your periapsis down to about 35k, drop the engine
gives you entry heating but doesn't actually slow you down, no G forces are registered and your obit doesn't change.