Similar to bug 76005, bug 126513, bug 153138 - we miss the "TableRowKeep" compatibility option on the compatibility tab. Bug 169247 shows a real problem caused by that setting. Its absence in the UI makes it impossible to change it for users. Code pointers: 830a3894ac98179fb78d6f1fdb409a51faab0c95 b51271b85387a57b4cdd20ee6277c1a955706fc1 71d2849bf62c21672626cc5fa9729677ef5ef292