Using 3.26.2 on Ubuntu 17.10 after adding a google account and opening the preference the valgrind log has this invalid read error

==9231== Invalid read of size 1
==9231==    at 0x7FD7C40: __strcmp_sse2_unaligned (strcmp-sse2-unaligned.S:24)
==9231==    by 0x6FC91D8: g_str_equal (ghash.c:1852)
==9231==    by 0x6FC80B6: g_hash_table_lookup_node (ghash.c:400)
==9231==    by 0x6FC80B6: g_hash_table_remove_internal (ghash.c:1359)
==9231==    by 0x142124: gcal_event_finalize (gcal-event.c:467)
==9231==    by 0x6D4FEB1: g_object_unref (gobject.c:3330)
==9231==    by 0x140E7A: gcal_event_widget_finalize (gcal-event-widget.c:534)
==9231==    by 0x6D4FEB1: g_object_unref (gobject.c:3330)
==9231==    by 0x5492B0D: gtk_container_destroy (gtkcontainer.c:1700)
==9231==    by 0x6D4AF9C: g_closure_invoke (gclosure.c:804)
==9231==    by 0x6D5DE51: signal_emit_unlocked_R (gsignal.c:3751)
==9231==    by 0x6D664B4: g_signal_emit_valist (gsignal.c:3391)
==9231==    by 0x6D66ECE: g_signal_emit (gsignal.c:3447)
==9231==  Address 0x33fcb5f0 is 64 bytes inside a block of size 152 free'd
==9231==    at 0x4C30D3B: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==9231==    by 0x753E3DC: icalproperty_free (icalproperty.c:191)
==9231==    by 0x7537871: icalcomponent_free (icalcomponent.c:205)
==9231==    by 0x72CEF74: free_icalcomponent (e-cal-component.c:351)
==9231==    by 0x72D0CA8: cal_component_finalize (e-cal-component.c:367)
==9231==    by 0x6D4FEB1: g_object_unref (gobject.c:3330)
==9231==    by 0x1571A0: component_data_free (e-cal-data-model.c:206)
==9231==    by 0x6FC7AEE: g_hash_table_insert_node (ghash.c:997)
==9231==    by 0x6FC7F6A: g_hash_table_insert_internal (ghash.c:1235)
==9231==    by 0x15762F: cal_data_model_process_added_component (e-cal-data-model.c:893)
==9231==    by 0x157F18: cal_data_model_notify_recurrences_cb (e-cal-data-model.c:1027)
==9231==    by 0x6FDA8A2: g_timeout_dispatch (gmain.c:4633)
==9231==  Block was alloc'd at
==9231==    at 0x4C2FB0F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==9231==    by 0x754B35C: icalvalue_new_impl (icalvalue.c:46)
==9231==    by 0x754B4DF: icalvalue_new_clone (icalvalue.c:71)
==9231==    by 0x753E473: icalproperty_new_clone (icalproperty.c:104)
==9231==    by 0x7537FAF: icalcomponent_new_clone (icalcomponent.c:164)
==9231==    by 0x159788: cal_data_model_process_modified_or_added_objects (e-cal-data-model.c:1233)
==9231==    by 0x6D4E041: g_cclosure_marshal_VOID__POINTERv (gmarshal.c:2026)
==9231==    by 0x6D4B1D5: _g_closure_invoke_va (gclosure.c:867)
==9231==    by 0x6D6679E: g_signal_emit_valist (gsignal.c:3300)
==9231==    by 0x6D66ECE: g_signal_emit (gsignal.c:3447)
==9231==    by 0x72CD82B: cal_client_view_emit_objects_added_idle_cb (e-cal-client-view.c:215)
==9231==    by 0x6FD9E24: g_main_dispatch (gmain.c:3148)
==9231==    by 0x6FD9E24: g_main_context_dispatch (gmain.c:3813)