Index: pkg/barback/lib/src/phase_input.dart |
diff --git a/pkg/barback/lib/src/phase_input.dart b/pkg/barback/lib/src/phase_input.dart |
index 840b564576394416f15f321788f98b8e6bd45b98..736bd0593fde7a5f776290b3bc01895b2d013562 100644 |
--- a/pkg/barback/lib/src/phase_input.dart |
+++ b/pkg/barback/lib/src/phase_input.dart |
@@ -136,7 +136,7 @@ class PhaseInput { |
if (brandNewTransformers.isEmpty) return; |
brandNewTransformers.forEach(_transformers.add); |
- _adjustTransformers(); |
+ if (_adjustTransformersFuture == null) _adjustTransformers(); |
} |
/// Asynchronously determines which transformers can consume [input] as a |