I have:

• searched open and closed issues for duplicates
• read https://github.com/WhisperSystems/Signal-Android/wiki/Submitting-useful-bug-reports

Bug description

Upgrading from 3.9.1-dev to 3.12.0-dev (both websockets reborn branch, self-built apk file) looses data and registration, new key requires new verification, need new invitation to groups, etc.

Also, when manually installing the self-made apk, it results in both Signal versions being installed simultaneously - it is not acting like an upgrade, the newer replacing the older one.

Steps to reproduce

• install 3.9.1-dev from apk
• use it, have messages and group memberships
• install 3.12.0-dev from apk

as that didn't work (2 signals installed in parallel), i also tried:

• deinstall both signals (but not removing data and cache)
• install 3.12.0-dev from apk

but it didn't help, new registration required, no access to old data.

Android version: Cyanogenmod 5.1.1

Signal version: 3.9.1 -> 3.12.0