RFR: 310: RFR thread integration messages should check target branch

[Robin Westberg]

Hi all,

Please review this change that ensures that when the notifier sends a threaded integration message, the PR in the RFR
thread targets the branch that the notifier is looking at.

Best regards,
Robin

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Commit messages:
 - Check that the PR target branch matches when sending a threaded notification

Changes: https://git.openjdk.java.net/skara/pull/512/files
 Webrev: https://webrevs.openjdk.java.net/skara/512/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/SKARA-310
  Stats: 91 lines in 2 files changed: 91 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/skara/pull/512.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/512/head:pull/512

PR: https://git.openjdk.java.net/skara/pull/512