Odd line on ball python after shed

[PythonsAndMore]

Our guy shed last night and has this odd line. He was wedged beside his hide, so don't know if he left a temporary mark on himself, or if this is something we should be concerned about?

https://ibb.co/g4y0Y7v

[PythonsAndMore]

Line is gone now. Think he had just given himself a crease by stuffing himself in a corner.🤣

[Bogertophis]

Line is gone now. Think he had just given himself a crease by stuffing himself in a corner.🤣

It's the snake equivalent of "bed-head".