merge

1 files changed, 6 insertions, 2 deletions

diff --git a/src/client/views/collections/CollectionSubView.tsx b/src/client/views/collections/CollectionSubView.tsx
index 99acfdcc2..a89fcc703 100644
--- a/src/client/views/collections/CollectionSubView.tsx
+++ b/src/client/views/collections/CollectionSubView.tsx
@@ -195,7 +195,11 @@ export function CollectionSubView<T, X>(schemaCtor: (doc: Doc) => T, moreProps?:
                     const movedDocs = docDragData.droppedDocuments.filter((d, i) => docDragData.draggedDocuments[i] === d);
                     const addedDocs = docDragData.droppedDocuments.filter((d, i) => docDragData.draggedDocuments[i] !== d);
                     const res = addedDocs.length ? this.addDocument(addedDocs) : true;
-                    added = movedDocs.length ? docDragData.moveDocument(movedDocs, this.props.Document, Doc.AreProtosEqual(Cast(movedDocs[0].annotationOn, Doc, null), this.props.Document) || de.embedKey || !this.props.isAnnotationOverlay ? this.addDocument : returnFalse) : res;
+                    if (movedDocs.length) {
+                        const canAdd = this.props.Document._viewType === CollectionViewType.Pile || de.embedKey || !this.props.isAnnotationOverlay ||
+                            Doc.AreProtosEqual(Cast(movedDocs[0].annotationOn, Doc, null), this.props.Document);
+                        added = docDragData.moveDocument(movedDocs, this.props.Document, canAdd ? this.addDocument : returnFalse);
+                    } else added = res;
                 } else {
                     added = this.addDocument(docDragData.droppedDocuments);
                 }
@@ -430,7 +434,7 @@ import { Docs, DocumentOptions, DocUtils } from "../../documents/Documents";
 import { CurrentUserUtils } from "../../util/CurrentUserUtils";
 import { DocumentType } from "../../documents/DocumentTypes";
 import { FormattedTextBox, GoogleRef } from "../nodes/formattedText/FormattedTextBox";
-import { CollectionView } from "./CollectionView";
+import { CollectionView, CollectionViewType } from "./CollectionView";
 import { SelectionManager } from "../../util/SelectionManager";
 import { OverlayView } from "../OverlayView";
 import { setTimeout } from "timers";