RFR: 2015: Initial run of PR IssueBot misses issue updates [v3]

[Zhao Song]

> Currently, if pullRequestBot is down for more than 10 minutes and during that time, if users make changes to some issues, than the update activities would not trigger CheckWorkItem after the bot restarts.
> 
> To solve this problem, In this patch, after the bot restarts, in the initial run, pullRequestBot would make CheckWorkItem compare both prMetaData and issueMetaData.

Zhao Song has updated the pull request incrementally with one additional commit since the last revision:

  rename method

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Changes:
  - all: https://git.openjdk.org/skara/pull/1554/files
  - new: https://git.openjdk.org/skara/pull/1554/files/7b5fa066..652f970d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=skara&pr=1554&range=02
 - incr: https://webrevs.openjdk.org/?repo=skara&pr=1554&range=01-02

  Stats: 5 lines in 2 files changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/skara/pull/1554.diff
  Fetch: git fetch https://git.openjdk.org/skara.git pull/1554/head:pull/1554

PR: https://git.openjdk.org/skara/pull/1554