[Integrated] RFR: 248: Only post integration messages to RFR threads once

[Robin Westberg]

Changeset: 1325136c
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2020-01-27 15:19:56 +0000
URL:       https://git.openjdk.java.net/skara/commit/1325136c

248: Only post integration messages to RFR threads once

Reviewed-by: ehelin

! bots/notify/src/main/java/org/openjdk/skara/bots/notify/MailingListUpdater.java
! bots/notify/src/test/java/org/openjdk/skara/bots/notify/UpdaterTests.java