 Bug 1519599 - Make 'retrigger all pinned jobs' create action tasks per push involved rather than per requested job (#4460)
 Bug 1519599 - Make 'retrigger all pinned jobs' create action tasks per push involved rather than per requested job (#4460)

Retrieve job info in one batch rather than loop through them all individually

edmorley/treeherder,edmorley/treeherder,KWierso/treeherder,edmorley/treeherder,KWierso/treeherder,KWierso/treeherder,edmorley/treeherder,KWierso/treeherder