fix history (#1009)

* fix history * tweak withBatchedUpdates typing
2020-03-19 14:51:05 +01:00
parent ca5f37850e
commit 82ce068972
16 changed files with 86 additions and 80 deletions
--- a/src/history.ts
+++ b/src/history.ts
@ -83,7 +83,7 @@ export class SceneHistory {
  }

  undoOnce(): Result | null {
-    if (this.stateHistory.length === 0) {
+    if (this.stateHistory.length === 1) {
      return null;
    }