User can stuck on View results

Updated logic for back button
Improved coding standards discovered on https://www.drupal.org/pift-ci-job/2817055 →

Improved coding standards of PollViewForm.php without any drustic changes. Created a follow up https://www.drupal.org/project/poll/issues/3405533 📌 Impove code standards Active for improving other files.

Checked the PR and it seems to be fine.

I'm not a big fun of unrelated CS violation fixes (as they usually cause merge conflicts), but I would leave this up to the decision of the maintainer. Maybe a test assertion could also be added which verifies that the back button is present in the corresponding case.

CS were already being fixed in a multitude of issues. So, it's best to rebase this of off the 2.0.x branch.

I think there is also some overlap with 🐛 Anonymous users - Multiple voting from one IP Needs review . That issue is also adding/changing the ::showResults conditions.

This was fixed in 🐛 Back to poll button only appears when allow anonymous vote is enabled Fixed will add credits there.