I fell foul of this rule change a few weeks ago.
In a puddle in a waterlogged bunker where the unflooded areas were covered with footprints, and with only a vague awareness of the rule changes, I raked the bunker and took relief on the spot I'd tidied.
Subsequently, it just didn't seem right so I read the rules properly, called in and got myself DQd.
good for you!
Best solution is play the old rule ie dont touch ANYTHING until after you're out the bunker