midgard_query_constraint_group_new invokes g_object_new. closes gh-30
midgard_query_constraint_group_new invokes g_object_new. closes gh-30

midgardproject/midgard-core,piotras/midgard-core,piotras/midgard-core,piotras/midgard-core,midgardproject/midgard-core,piotras/midgard-core,midgardproject/midgard-core,midgardproject/midgard-core