Valve described the bug as '[The] Scout not being able to double crouch jump without looking like his legs are made of raw bacon strips held up in a wind tunnel', before declaring it was in fact not a bug at all:
...Luckily, things have a funny way of working themselves out for the best. Del was hit by a bus this morning."
To read the full hilariously ridiculous explanation, take a visit to the Team Fortress 2 Blog.
In other news for those of you in the business of making Team Fortress 2 maps, TF2Maps.net has created a new Swamp Theme Pack to get your creative juices flowing!