I can also confirm that if I disable autologin, reboot and then update to the current packages in focal-proposed updates that the installation of accountsservice 0.6.55-0ubuntu12~20.04.1 from the current accountsservice 0.6.55-0ubuntu11 package completes normally.
I can also confirm that if I disable autologin, reboot and then update to the current packages in focal-proposed updates that the installation of accountsservice 0.6.55- 0ubuntu12~ 20.04.1 from the current accountsservice 0.6.55-0ubuntu11 package completes normally.