[Integrated] RFR: Wait with resolving PR until needed when bridging mails

[Robin Westberg]

Changeset: 3d52e6b8
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2020-03-06 09:52:40 +0000
URL:       https://git.openjdk.java.net/skara/commit/3d52e6b8

Wait with resolving PR until needed when bridging mails

Reviewed-by: ehelin

! bots/mlbridge/src/main/java/org/openjdk/skara/bots/mlbridge/MailingListArchiveReaderBot.java