If the player stands in cobwebs while in third person view (F5) the camera zooms into their head, instead of ignoring blocks that aren't solid.
Works with almost anything that is counted as a block and can be walked through (e.g. tall flowers, tall grass and signs)
Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.