[MySQL] Fix for DBZ-7037 and #2217 to not clear tableMapEventByTableId for fake Rotates Event (#3065)

flink-cdc-connect/flink-cdc-source-connectors/flink-connector-mysql-cdc/src/main/java/io/debezium/connector/mysql/MySqlStreamingChangeEventSource.java

@@ -268,7 +268,8 @@ public class MySqlStreamingChangeEventSource
 
                             // DBZ-5126 Clean cache on rotate event to prevent it from growing
                             // indefinitely.
-                            if (event.getHeader().getEventType() == EventType.ROTATE) {
+                            if (event.getHeader().getEventType() == EventType.ROTATE
+                                    && event.getHeader().getTimestamp() != 0) {
                                 tableMapEventByTableId.clear();
                             }
                             return event;