The account creation dialog for jabber accounts is broken. It contains no text input fields or labels. (same for Office). Clicking OK will actually create a totally empty account.

Reproducible: Always

Steps to Reproduce:
1. Open Online Accounts System Settings either through system settings or through tray
2. Click on Create
3. Click on Jabber

Actual Results:  
No input fields, see:
http://zulan.net/misc/telepathy-jabber.png
http://zulan.net/misc/telepathy-jabber-advanced.png

Expected Results:  
Input fields, works for other account types.

Archlinux:

 % pacman -Qs telepathy                                                 
local/telepathy-accounts-signon 1.0-1
    A mission control plugin for Telepathy, integrating with libaccounts and libsignon to provide IM accounts and authentication
local/telepathy-farstream 0.6.2-2
    A telepathy-backend to use stream engine.
local/telepathy-glib 0.24.1-1
    GLib bindings for the Telepathy D-Bus protocol
local/telepathy-haze 0.8.0-1 (telepathy)
    A telepathy-backend to use libpurple (Pidgin) protocols.
local/telepathy-kde-accounts-kcm 15.08.0-1 (kde-applications kdenetwork telepathy-kde)
    KCM Module for configuring Telepathy Instant Messaging Accounts
local/telepathy-kde-approver 15.08.0-1 (kde-applications kdenetwork telepathy-kde)
    KDE Channel Approver for Telepathy
local/telepathy-kde-auth-handler 15.08.0-1 (kde-applications kdenetwork telepathy-kde)
    Provide UI/KWallet Integration For Passwords and SSL Errors on Account Connect
local/telepathy-kde-common-internals 15.08.0-1 (kde-applications kdenetwork telepathy-kde)
    Common components for KDE-Telepathy
local/telepathy-kde-contact-list 15.08.0-1 (kde-applications kdenetwork telepathy-kde)
    KDE Telepathy contact list application
local/telepathy-kde-contact-runner 15.08.0-1 (kde-applications kdenetwork telepathy-kde)
    KRunner plugin for KDE Telepathy
local/telepathy-kde-desktop-applets 15.08.0-1 (kde-applications kdenetwork telepathy-kde)
    The KDE-Telepathy Plasma desktop applets
local/telepathy-kde-filetransfer-handler 15.08.0-1 (kde-applications kdenetwork telepathy-kde)
    KDE Telepathy file transfer handler
local/telepathy-kde-integration-module 15.08.0-1 (kde-applications kdenetwork telepathy-kde)
    Sits in KDED and takes care of various bits of system integration like setting user to auto-away or handling connection errors
local/telepathy-kde-meta 15.08-1
    KDE-Telepathy meta package
local/telepathy-kde-send-file 15.08.0-1 (kde-applications kdenetwork telepathy-kde)
    A File manager plugin to launch a file transfer job with a specified contact
local/telepathy-kde-text-ui 15.08.0-1 (kde-applications kdenetwork telepathy-kde)
    Telepathy handler for Text Chats
local/telepathy-logger 0.8.2-1
    Telepathy framework logging daemon
local/telepathy-logger-qt 15.04.0-1
    Qt bindings for telepathy logger
local/telepathy-mission-control 5.16.3-1
    A Telepathy component providing abstraction of some of the details of connection managers.
local/telepathy-qt4 0.9.6.1-1
    A library for Qt4-based Telepathy clients
local/telepathy-qt5 0.9.6.1-1
    A library for Qt5-based Telepathy clients

P.S. I have no way of figuring out if this is an upstream bug or an archlinux issue, or both.