Cwa-app-ios: OnboardingInfoViewController pushed twice on second next tap

[mozead1996]

Avoid duplicates

• [x] Bug is not mentioned in the FAQ
• [x] Bug is not already reported in another issue

Technical details

• Device name: Iphone 8
• iOS Version: iOS 14.4
• App Version: release/2.0.x

Describe the bug

A screen pushed twice in OnboardingInfoViewController's navigaitonController stack when click next button

Steps to reproduce the issue

1. Open app for first time
2. Click on 'Let's get started'
3. Click on 'next'
4. Click on 'next' again

Expected behaviour

Expected behavior is that screen that contains "If you are diagnosed with corona virus " Header pushed only once

Possible Fix

I see the issue that completion handler called twice in switch statement in onBoardingViewController
I will submit a PR

Additional context

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Internal Tracking ID: EXPOSUREAPP-5771

[Ein-Tim]

Confirm this bug. Also visible on the 1.15.x branch AND 1.14.x branch (but it's not reproducible on a real iPhone 6s with 1.14.4 installed).

[mozead1996]

I submitted a PR with GIF representing the fix @Ein-Tim

[Ein-Tim]

Disclaimer:
I'm not a community manager or developer.

@mozead1996
I can confirm that the fix is working. 👍

[dsarkar]

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Internal Tracking ID: EXPOSUREAPP-5771

[Ein-Tim]

2225 was merged into the Release 1.15.x branch and I can confirm that the fix works. @dsarkar Please re-label to Fix 1.15.

@mozead1996 I think this issue can be closed now, or?