fixing ordering checkpoint

src/database/compile/polymorphism.rs

@@ -8,7 +8,7 @@ impl Schema {
     path: &str,
     errors: &mut Vec<crate::drop::Error>,
   ) {
-    let mut options = std::collections::BTreeMap::new();
+    let mut options = indexmap::IndexMap::new();
     let strategy: &str;
 
     if let Some(family) = &self.obj.family {