atomics test fails on FreeBSD CI since !1123

Job #499622 failed for 4dcad56f:

  3/260 glib:glib / atomic                      FAIL     0.35 s (killed by signal 6 SIGABRT)

--- command ---
G_TEST_BUILDDIR='/var/tmp/gitlab_runner/builds/ds83dkqQ/0/GNOME/glib/_build/glib/tests' G_DEBUG='gc-friendly' MALLOC_CHECK_='2' MALLOC_PERTURB_='112' G_TEST_SRCDIR='/var/tmp/gitlab_runner/builds/ds83dkqQ/0/GNOME/glib/glib/tests' /var/tmp/gitlab_runner/builds/ds83dkqQ/0/GNOME/glib/_build/glib/tests/atomic
--- stdout ---
# random seed: R02S44998e287926a0ec1da1c87abcc62731
1..2
# Start of atomic tests
Bail out! GLib:ERROR:../glib/tests/atomic.c:87:test_types: 'res' should be TRUE
--- stderr ---
**
GLib:ERROR:../glib/tests/atomic.c:87:test_types: 'res' should be TRUE
-------

/cc @sdroege