Edit and save deployment environment notification (Webhooks) fails

An unexpected error has occurred
org.springframework.dao.DataIntegrityViolationException: could not execute batch; SQL [insert into NOTIFICATIONS (RECIPIENT_TYPE, RECIPIENT, NOTIFICATION_SET, CONDITION_KEY, CONDITION_DATA, NOTIFICATION_RULE_ID) values (?, ?, ?, ?, ?, ?)]; constraint [notifications_unique]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute batch
	at org.springframework.orm.hibernate5.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:245)
	at org.springframework.orm.hibernate5.HibernateTransactionManager.convertHibernateAccessException(HibernateTransactionManager.java:802)
	at org.springframework.orm.hibernate5.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:638)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:746)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:714)
	at sun.reflect.GeneratedMethodAccessor254.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:343)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:205)
	at com.sun.proxy.$Proxy115.commit(Unknown Source)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:534)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:305)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
	at com.sun.proxy.$Proxy212.replaceNotification(Unknown Source)
...
Caused by: java.sql.BatchUpdateException: Batch entry 0 insert into NOTIFICATIONS (RECIPIENT_TYPE, RECIPIENT, NOTIFICATION_SET, CONDITION_KEY, CONDITION_DATA, NOTIFICATION_RULE_ID) values ('com.atlassian.bamboo.plugin.system.notifications:recipient.webhook', 'd2da5014-ca25-4bc3-a077-9f490359030f|https://webhook.site/446a8f1e-55ce-4bb3-8987-9dfbe6288a34', 655363, 'bamboo.deployments:deploymentStartedFinished', '', 819213) was aborted: ERROR: duplicate key value violates unique constraint "notifications_unique"
  Detail: Key (recipient_type, recipient, notification_set, condition_key, condition_data)=(com.atlassian.bamboo.plugin.system.notifications:recipient.webhook, d2da5014-ca25-4bc3-a077-9f490359030f|https://webhook.site/446a8f1e-55ce-4bb3-8987-9dfbe6288a34, 655363, bamboo.deployments:deploymentStartedFinished, ) already exists.  Call getNextException to see other errors in the batch.
	at org.postgresql.jdbc.BatchResultHandler.handleError(BatchResultHandler.java:159)
	at org.postgresql.core.ResultHandlerDelegate.handleError(ResultHandlerDelegate.java:50)
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2268)
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:510)
	at org.postgresql.jdbc.PgStatement.internalExecuteBatch(PgStatement.java:851)
	at org.postgresql.jdbc.PgStatement.executeBatch(PgStatement.java:874)
	at org.postgresql.jdbc.PgPreparedStatement.executeBatch(PgPreparedStatement.java:1563)
	at com.zaxxer.hikari.pool.ProxyStatement.executeBatch(ProxyStatement.java:128)
	at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeBatch(HikariProxyPreparedStatement.java)
	at org.hibernate.engine.jdbc.batch.internal.BatchingBatch.performExecution(BatchingBatch.java:121)
	... 305 more
Caused by: org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "notifications_unique"
  Detail: Key (recipient_type, recipient, notification_set, condition_key, condition_data)=(com.atlassian.bamboo.plugin.system.notifications:recipient.webhook, d2da5014-ca25-4bc3-a077-9f490359030f|https://webhook.site/446a8f1e-55ce-4bb3-8987-9dfbe6288a34, 655363, bamboo.deployments:deploymentStartedFinished, ) already exists.