ItemsToDelete is not threadsafe - fixing this via lock to avoid potential problems in DeleteScheduledReductions
Fix loop exit after a concurrency exception
do not materialize all the results before sending to transformer
Making sure that we pass the values to the highligher in order
Merge branch 'master' of https://github.com/barryhagan/ravendb
Merge branch 'FixItemsToDeleteThreadSafe' of https://github.com/steinho/ravendb
A better approach to handling concurrency in this case