The distance between the nut and the saddle hasn't changed, the unit weight of the string hasn't changed, and the tuning hasn't changed, so the tension must be the same. The string length behind the nut or saddle acts like a spring - when you push on the main part of the string, it may stretch a little and allow a bit more "give". So in theory, your strings should feel more loose/bendy/compliant because you've added length behind the saddle. But since we're talking ~1cm of difference, it's probably not even noticeable.