Restoring a saved view doesn't work with long lines and a view not observing scrolloff

[dstein64]

Describe the bug

Restoring a saved view doesn't work with long lines and a view not observing scrolloff (a state that can be entered through e.g., <c-d>).

To Reproduce
Detailed steps to reproduce the behavior:

1. Run vim --clean (or gvim --clean, etc.)
2. Edit example.txt
3. :set lines=40
4. :set columns=80
5. Type <c-d><c-d>
6. :call winrestview(winsaveview())

Expected behavior

I expected that restoring the current view wouldn't change the view. That is, I thought that winrestview(winsaveview()) would effectively be a no-op, but it resulted in the view changing (presumably to satisfy the default scrolloff=5, which became unsatisfied after pressing <c-d> twice).

Environment (please complete the following information):

• Vim version: 8.2.2434
• OS: Ubuntu 21.04
• Terminal: Konsole 20.12.3