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commit 2c014a9af1160d4a192eb89a24466009225a3edf
parent da7da74986c8cd327315070e5d4f72fea0534f4f
Author: Dan Stillman <dstillman@zotero.org>
Date:   Mon, 31 Oct 2016 02:28:02 -0400

Debugging for https://forums.zotero.org/discussion/62942/

Diffstat:
M
chrome/content/zotero/xpcom/data/item.js
 | 
6
+++++-

1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/chrome/content/zotero/xpcom/data/item.js b/chrome/content/zotero/xpcom/data/item.js
@@ -4231,7 +4231,11 @@ Zotero.Item.prototype.toJSON = function (options = {}) {
 	// Collections
 	if (this.isTopLevelItem()) {
 		obj.collections = this.getCollections().map(function (id) {
-			return this.ContainerObjectsClass.getLibraryAndKeyFromID(id).key;
+			var { libraryID, key } = this.ContainerObjectsClass.getLibraryAndKeyFromID(id);
+			if (!key) {
+				throw new Error("Item collection " + id + " not found");
+			}
+			return key;
 		}.bind(this));
 	}