* hydra: on git ls-remote add refs/heads/ prefix to branchname to avoid other branches called master (or $branchname)

Dependencies

• [2] KQS7DSKJ * Clean up indentation.
• [3] BK24VA6Q * for git inputs, check latest revision of branch (defaults to master for now), if there is change, only use input if last checkout was > hour ago.
• [*] OOQ2D3KC * Refactoring: move fetchInput out of hydra_scheduler into a separate

Change contents

• replacement in src/lib/Hydra/Helper/AddBuilds.pm at line 277
  [3.175]→[2.6140:6184](∅→∅)
  − "git", "ls-remote", $uri, $branch);
  [3.175]

  [3.216]
  + "git", "ls-remote", $uri, "refs/heads/".$branch);