No procedure for total reset of contact sync

[xgiannak]

Problem scope

• I'm sure that this is a DAVx⁵ problem.

App version

• I'm using the latest available DAVx⁵ version.

Android version and device/firmware type

Android 13 (OnePlus 10T 5G)

Steps to reproduce

For reasons linked to [problem] (#130) the Cardav sync between DavX5 and my contacts is broken.
I have tried to restore, clean, reinstall, but nothing works.
I am not asking a solution for the initial problem, but a possibility to restart from scratch.
All the information has been accumulated in Discussion here
A person on GooglePlay comments suggested I open an issue on DavX5 site, with the form, but nobody answered.

Actual result

Currently, no contact is synced, that is the book associated with DavX in the Android system is empty.
Creating a contact in Android syncs it to the SOGo.

Expected result

A list of cleaning actions that would allow to reinstall the system and have it working.

Further info

I clicked "I am sure this is a DavX problem" but there is a minimal probability it is not DavX's fault. I don't have the instruments to be that sure.
There could be a new rule linked to the Contacts applications, but I did not see any related issue. Also I uninstalled the Contact application as part of my trials.

[devvv4ever]

Hello again, the ticket was closed since it was handled already in the discussion. Let'S continue there: #1688