Changelog keyed state backend would come across NPE during notification

Caused by: java.lang.NullPointerException
 	at org.apache.flink.state.changelog.ChangelogKeyedStateBackend.notifyCheckpointAborted(ChangelogKeyedStateBackend.java:536)
 	at org.apache.flink.streaming.api.operators.StreamOperatorStateHandler.notifyCheckpointAborted(StreamOperatorStateHandler.java:298)
 	at org.apache.flink.streaming.api.operators.AbstractStreamOperator.notifyCheckpointAborted(AbstractStreamOperator.java:383)
 	at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.notifyCheckpointAborted(AbstractUdfStreamOperator.java:132)
 	at org.apache.flink.streaming.runtime.tasks.RegularOperatorChain.notifyCheckpointAborted(RegularOperatorChain.java:158)
 	at org.apache.flink.streaming.runtime.tasks.SubtaskCheckpointCoordinatorImpl.notifyCheckpoint(SubtaskCheckpointCoordinatorImpl.java:406)
 	at org.apache.flink.streaming.runtime.tasks.SubtaskCheckpointCoordinatorImpl.notifyCheckpointAborted(SubtaskCheckpointCoordinatorImpl.java:352)
 	at org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$notifyCheckpointAbortAsync$15(StreamTask.java:1327)
 	at org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$notifyCheckpointOperation$17(StreamTask.java:1350)
 	at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$1.runThrowing(StreamTaskActionExecutor.java:50)
 	at org.apache.flink.streaming.runtime.tasks.mailbox.Mail.run(Mail.java:90)
 	at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMailsNonBlocking(MailboxProcessor.java:353)
 	at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMail(MailboxProcessor.java:317)
 	at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:201)
 	at org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:802)
 	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:751)
 	at org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:948)
 	at org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:927)
 	at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:741)
 	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:563)
 	at java.lang.Thread.run(Thread.java:748)