Comment 12 for bug 1512002

This problem popped up last night and has now occurred the last three times I woke my computer from sleep ("suspend") mode.
When I type my password to wake my computer, I get the same dialog box indicating that authentication is required, and the details indicate "org.freedesktop.accounts.change-own-user-data". I have clicked "cancel" each time and was able to resume work without any problems.
I am working on a desktop running Ubuntu 15.10.