Horizontal Scroll View with Elastic Movement Type inside a Canvas with Canvas Scaler set to "Scale with screen size" behaves differently when changing the game window resolution to different one from the one set in Reference Resolution of Canvas Scaler.

To reproduce:
1. Open the attached project
2. Set game window resolution to 480x800
3. Enter play mode
4. Notice that it is possible to drag the white image so that it covers the whole game window
5. Change the resolution to 320x480
6. Notice that it is no longer possible to drag the white image so that it covers the whole game window as it leaves some space on the right

Expected: Scroll View works the same no matter the resolution of the game window when Canvas Scaler is set to "Scale with screen size"
Actual: Scroll View works differently depending on the resolution of the game window when Canvas Scaler is set to "Scale with screen size"

Note:
Different resolutions produce different results. For example setting the game window to 1024x768 allows the image to leave outside the bounds

Reproduced on: 5.4.1p1, 5.4.1f1, 5.4.0f3
Not reproducible on: 5.3.6p5, 5.2.5f1