feat: reset the generator when generate finishes

crates/aiken-lang/src/uplc.rs

@@ -123,6 +123,15 @@ impl<'a> CodeGenerator<'a> {
 
         program = aiken_optimize_and_intern(program);
 
+        // This is very important to call here.
+        // If this isn't done, re-using the same instance
+        // of the generator will result in free unique errors
+        // among other unpredictable things. In fact,
+        // switching to a shared code generator caused some
+        // instability issues and we fixed it by placing this
+        // method here.
+        self.reset();
+
         program
     }
 

crates/aiken-project/src/blueprint/mod.rs

@@ -36,7 +36,6 @@ impl Blueprint<Schema> {
         let validators: Result<Vec<_>, Error> = modules
             .validators()
             .map(|(validator, def)| {
-                generator.reset();
                 Validator::from_checked_module(modules, generator, validator, def)
             })
             .collect();