fix overwriting / deleting auto links, closes #1406

src/entities/attribute.js

@@ -34,6 +34,10 @@ class Attribute extends Entity {
         this.isInheritable = !!this.isInheritable;
     }
 
+    isAutoLink() {
+        return this.type === 'relation' && ['internalLink', 'imageLink', 'relationMapLink', 'includeNoteLink'].includes(this.name);
+    }
+
     /**
      * @returns {Note|null}
      */

src/routes/api/attributes.js

@@ -147,9 +147,11 @@ function updateNoteAttributes(req) {
 
     // all the remaining existing attributes are not defined anymore and should be deleted
     for (const toDeleteAttr of existingAttrs) {
+        if (!toDeleteAttr.isAutoLink()) {
             toDeleteAttr.isDeleted = true;
             toDeleteAttr.save();
         }
+    }
 }
 
 function getAttributeNames(req) {