This fixes:
==5944== 64,392 bytes in 4,223 blocks are definitely lost in loss record 16,020 of 16,045
==5944== at 0x4C28C50: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==5944== by 0x1445EFCC: g_malloc (gmem.c:94)
==5944== by 0x1445F2AE: g_malloc_n (gmem.c:330)
==5944== by 0x144981DC: g_variant_get_strv (gvariant.c:1572)
==5944== by 0x48FA45: settings_get_binding (cc-keyboard-item.c:369)
==5944== by 0x48FA9D: binding_changed (cc-keyboard-item.c:384)
==5944== by 0x141C3E2F: g_cclosure_marshal_VOID__STRINGv (gmarshal.c:1794)
==5944== by 0x141BFBE3: _g_closure_invoke_va (gclosure.c:864)
==5944== by 0x141DA3E7: g_signal_emit_valist (gsignal.c:3292)
==5944== by 0x141DB55F: g_signal_emit (gsignal.c:3439)
==5944== by 0x13EDC81D: g_settings_real_change_event (gsettings.c:386)
https://bugzilla.gnome.org/show_bug.cgi?id=756762
99ef490875