fix: convert constraints fails to convert animations

Closes: #1520

CHANGELOG-PRERELEASE-jp.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - [#1508] テクスチャのサイズが4の倍数でない場合に、エクスプレッションメニューアイコンの自動圧縮が失敗する問題を修正
 - [#1513] iOSビルドでエクスプレッションメニューアイコンの圧縮が壊れる問題を修正
+- [#1522] `Convert Constraints` がアニメーション参照を変換できない問題を修正
 
 ### Changed
 - [#1514] `Merge Blend Tree` は `Merge Motion (Blend Tree)` に改名され、アニメーションクリップにも対応するようになりました

CHANGELOG-PRERELEASE.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - [#1508] Fix an issue where automatic compression of expressions menu icons would fail when the texture dimensions were
   not divisible by four.
 - [#1513] Expression menu icon compression broke on iOS builds
+- [#1522] `Convert Constraints` failed to convert animation references
 
 ### Changed
 - [#1514] `Merge Blend Tree` is now `Merge Motion (Blend Tree)` and supports merging animation clips as well as blend trees

Editor/OptimizationPasses/ConstraintConverterPass.cs

@@ -103,7 +103,7 @@ namespace nadena.dev.modular_avatar.core.editor
                         };
                         var curve = clip.GetFloatCurve(ecb);
                         clip.SetFloatCurve(newBinding, curve);
-                        clip.SetFloatCurve(newBinding, null);
+                        clip.SetFloatCurve(ecb, null);
                     }
             }
         }