Repro steps:
1) Open ColliderFlip project and asd.scene
2) Select linux object in the Hierarchy and notice the polygon collider in the Scene view
3) Flip X or Y in the Inspectors Sprite Renderer
4) Notice that the sprite flips, but collider remains in the same position
5) Delete collider, while the sprite is flipped and create a new one
6) Notice that the collider is still in the original place

Expected result: collider recognizes the sprites flipping and flips together

Reproduced in: 5.4.0b7; 5.3.3p1
No such function in 5.2