ibus-daemon crashed with SIGABRT in g_mutex_clear()

[Knarf]

With sddm Displaymanger. gdm3 goes automatic to Ubuntu Wayland. No change possible.

No Mouse click possibele but mouse moved. Can't change the Displaymanger.

SDDM Change possible. Ubuntu or Gnome not started.

Scroll Lock flashed.

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: ibus 1.5.17-3ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3
Uname: Linux 4.15.0-10-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CurrentDesktop: GNOME-Greeter:GNOME
Date: Sun Feb 18 15:20:13 2018
ExecutablePath: /usr/bin/ibus-daemon
ProcCmdline: ibus-daemon --xim --panel disable
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/false
Signal: 6
SourcePackage: ibus
StacktraceTop:
 g_mutex_clear () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? ()
 g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: ibus-daemon crashed with SIGABRT in g_mutex_clear()
UpgradeStatus: Upgraded to bionic on 2017-12-04 (76 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 g_mutex_clear (mutex=mutex@entry=0x55bb6889e090) at ../../../../glib/gthread-posix.c:1307
 bus_dbus_impl_destroy (dbus=0x55bb6889e030) at dbusimpl.c:635
 g_closure_invoke (closure=0x55bb68893050, return_value=0x0, n_param_values=1, param_values=0x7ffc53ece290, invocation_hint=0x7ffc53ece210) at ../../../../gobject/gclosure.c:804
 signal_emit_unlocked_R (node=node@entry=0x55bb688930a0, detail=detail@entry=0, instance=instance@entry=0x55bb6889e030, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7ffc53ece290) at ../../../../gobject/gsignal.c:3673
 g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffc53ece450) at ../../../../gobject/gsignal.c:3391

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[WHK (yan-uniko-102)]

Same error in Ubuntu 20.04 LTS with all last upgrades and ibus 1.5.22-2ubuntu2.1.