Fix hasChanged() bug related to 'synced'

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

@@ -776,6 +776,7 @@ Zotero.DataObject.prototype.hasChanged = function() {
 	var changed = Object.keys(this._changed).filter(dataType => this._changed[dataType]);
 	if (changed.length == 1
 			&& changed[0] == 'primaryData'
+			&& Object.keys(this._changed.primaryData).length == 1
 			&& this._changed.primaryData.synced
 			&& this._previousData.synced == this._synced) {
 		return false;

test/tests/dataObjectTest.js

@@ -121,25 +121,6 @@ describe("Zotero.DataObject", function() {
 			}
 		});
 		
-		it("shouldn't cause a save if unchanged and nothing else changed", function* () {
-			for (let type of types) {
-				var obj = createUnsavedDataObject(type);
-				obj.synced = true;
-				var id = yield obj.saveTx();
-				assert.isTrue(obj.synced);
-				
-				obj.synced = true;
-				assert.isFalse(obj.hasChanged(), type + " shouldn't be changed");
-				
-				var obj = createUnsavedDataObject(type);
-				obj.synced = false;
-				var id = yield obj.saveTx();
-				assert.isFalse(obj.synced);
-				obj.synced = false;
-				assert.isFalse(obj.hasChanged(), type + " shouldn't be changed");
-			}
-		})
-		
 		it("should be unchanged if skipSyncedUpdate passed", function* () {
 			for (let type of types) {
 				var obj = createUnsavedDataObject(type);
@@ -212,6 +193,42 @@ describe("Zotero.DataObject", function() {
 		})
 	})
 	
+	
+	describe("#hasChanged()", function () {
+		it("should return false if 'synced' was set but unchanged and nothing else changed", function* () {
+			for (let type of types) {
+				// True
+				var obj = createUnsavedDataObject(type);
+				obj.synced = true;
+				var id = yield obj.saveTx();
+				assert.isTrue(obj.synced);
+				
+				obj.synced = true;
+				assert.isFalse(obj.hasChanged(), type + " shouldn't be changed");
+				
+				// False
+				var obj = createUnsavedDataObject(type);
+				obj.synced = false;
+				var id = yield obj.saveTx();
+				assert.isFalse(obj.synced);
+				obj.synced = false;
+				assert.isFalse(obj.hasChanged(), type + " shouldn't be changed");
+			}
+		})
+		
+		it("should return true if 'synced' was set but unchanged and another primary field changed", function* () {
+			for (let type of types) {
+				let obj = createUnsavedDataObject(type);
+				obj.synced = true;
+				yield obj.saveTx();
+				
+				obj.synced = true;
+				obj.version = 1234;
+				assert.isTrue(obj.hasChanged());
+			}
+		})
+	})
+	
 	describe("#save()", function () {
 		it("should add new identifiers to cache", function* () {
 			// Collection