Comment 2 for bug 1696395

StacktraceTop:
 um_carousel_select_item (self=0x55c78de65520, item=0x0) at um-carousel.c:212
 reload_users (d=0x55c78d8fc440, selected_user=0x55c78dbfaec0) at um-user-panel.c:299
 g_closure_invoke (closure=0x55c78e06b900, return_value=return_value@entry=0x0, n_param_values=2, param_values=param_values@entry=0x7ffdbce75730, invocation_hint=invocation_hint@entry=0x7ffdbce756b0) at ../../../../gobject/gclosure.c:804
 signal_emit_unlocked_R (node=node@entry=0x55c78e0204e0, detail=detail@entry=0, instance=instance@entry=0x55c78dbfadb0, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7ffdbce75730) at ../../../../gobject/gsignal.c:3635
 g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffdbce758f0) at ../../../../gobject/gsignal.c:3391