GValue.get_value: fix crashes for Variants

g_value_get_variant is transfer-none but was annotated as full which
results in the bindings unreffing it too many times.

Work around the issue by using g_value_dup_variant instead which is
really transfer-full.

1 files changed, 4 insertions, 3 deletions

diff --git a/tests/test_overrides_gobject.py b/tests/test_overrides_gobject.py
index b902564f..37292dbb 100644
--- a/tests/test_overrides_gobject.py
+++ b/tests/test_overrides_gobject.py
@@ -183,13 +183,14 @@ def test_value_variant():
     assert v.get_value() is None
     variant = GLib.Variant('i', 42)
     v.set_value(variant)
-
-    # FIXME: triggers an assert
-    # assert v.get_value() == variant
+    assert v.get_value() == variant
 
     v.set_value(None)
     assert v.get_value() is None
 
+    with pytest.raises(TypeError):
+        v.set_value(object())
+
 
 def test_value_param():
     # FIXME: set_value and get_value trigger a critical