Can't override default APN in roaming
Jolla 1, SFOS 2.2, operator - Tinkoff (wich is physically Tele2), country - Portugal Can't test it now on SFOS since I'm home now. In home network it seems to be ok.
After changing APN to custom it reverts back to provided by network. So I wasn't able to use mobila data while abroad. Steps to reproduce:
Open Settings - Cellural Network - Data access point
Edit Acces point name to smth completely different
Close settings
Open Open Settings - Cellural Network - Data access point -> there is not that you entered on step 2, but what network gives.