RFR: git-pr: do not fetch pull requests twice

[Erik Helin]

Hi all,

please review this small patch that fixes an issue where `git-pr` would
unnecessarily download the metadata for all pull requests _twice_.

Thanks,
Erik

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Commits:
 - 410cf917: git-pr: do not fetch pull requests twice

Changes: https://git.openjdk.java.net/skara/pull/299/files
 Webrev: https://webrevs.openjdk.java.net/skara/299/webrev.00
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/skara/pull/299.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/299/head:pull/299

PR: https://git.openjdk.java.net/skara/pull/299