Fix bug where quality < 0

Author: FranzBangar

src/classy_blocks/optimize/iteration.py

@@ -121,6 +121,10 @@ def converged(self) -> bool:
             report("Iteration limit hit, stopping optimization.")
             return True
 
+        if self.iterations[-1].final_quality < TOL:
+            print("Nothing left to optimize.")
+            return True
+
         if len(self.iterations) < 2:
             # Can't decide without data
             return False
@@ -129,8 +133,4 @@ def converged(self) -> bool:
             print("Tolerance reached, stopping optimization.")
             return True
 
-        if self.iterations[-1].final_quality < TOL:
-            print("Nothing left to optimize.")
-            return True
-
         return False