Clear item creators when calling setCreators() with an empty array

chrome/content/zotero/xpcom/data/item.js

@@ -1078,6 +1078,14 @@ Zotero.Item.prototype.setCreator = function (orderIndex, data) {
  * @param {Object[]} data - An array of creator data in internal or API JSON format
  */
 Zotero.Item.prototype.setCreators = function (data) {
+	// If empty array, clear all existing creators
+	if (!data.length) {
+		while (this.hasCreatorAt(0)) {
+			this.removeCreator(0);
+		}
+		return;
+	}
+	
 	for (let i = 0; i < data.length; i++) {
 		this.setCreator(i, data[i]);
 	}

test/tests/itemTest.js

@@ -435,6 +435,21 @@ describe("Zotero.Item", function () {
 			item = Zotero.Items.get(id);
 			assert.sameDeepMembers(item.getCreators(), creators);
 		})
+		
+		it("should clear creators if empty array passed", function () {
+			var item = createUnsavedDataObject('item');
+			item.setCreators([
+				{
+					firstName: "First",
+					lastName: "Last",
+					fieldMode: 0,
+					creatorTypeID: 1
+				}
+			]);
+			assert.lengthOf(item.getCreators(), 1);
+			item.setCreators([]);
+			assert.lengthOf(item.getCreators(), 0);
+		});
 	})
 	
 	describe("#getAttachments()", function () {