Fix a crash when lifting nested list

FIX: Fix a regression where lifting a nested list could crash. Closes ProseMirror/prosemirror#1299
ProseMirror · Jul 20, 2022 · df12c7d · df12c7d
1 parent 757e45b
commit df12c7d
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/schema-list.ts b/src/schema-list.ts
@@ -179,7 +179,9 @@ function liftToOuterList(state: EditorState, dispatch: (tr: Transaction) => void
                                   new Slice(Fragment.from(itemType.create(null, range.parent.copy())), 1, 0), 1, true))
     range = new NodeRange(tr.doc.resolve(range.$from.pos), tr.doc.resolve(endOfList), range.depth)
   }
-  dispatch(tr.lift(range, liftTarget(range)!).scrollIntoView())
+  const target = liftTarget(range)
+  if (target == null) return false
+  dispatch(tr.lift(range, target).scrollIntoView())
   return true
 }