Fix #134366: object.closest_point_on_mesh always returns no result

Introduced in 024d7d12e2

Pull Request: https://projects.blender.org/blender/blender/pulls/134377

tests/python/bl_object.py

@@ -0,0 +1,21 @@
+import unittest
+
+import bpy
+from mathutils import Vector
+
+
+class TestObjectApi(unittest.TestCase):
+    def test_closest_point_on_mesh_of_default_cube(self):
+        bpy.ops.object.select_all(action='SELECT')
+        bpy.ops.object.delete(use_global=False)
+        bpy.ops.outliner.orphans_purge()
+        bpy.ops.mesh.primitive_cube_add()
+        ret_val = bpy.context.scene.objects[0].closest_point_on_mesh(Vector((0.0, 0.0, 2.0)))
+        self.assertTrue(ret_val[0])
+        self.assertEqual(ret_val[1], Vector((0.0, 0.0, 1.0)))
+
+
+if __name__ == '__main__':
+    import sys
+    sys.argv = [__file__] + (sys.argv[sys.argv.index("--") + 1:] if "--" in sys.argv else [])
+    unittest.main()