tree b9b3a22c43414ae2dbd978252d4f8fda5b8b055f
parent 46cd3afb0228dd18c5d67d2ef7e3620fcc4cc239
author Mathias Agopian <mathias@google.com> 1252968522 -0700
committer Mathias Agopian <mathias@google.com> 1252968522 -0700

make sure to update the tail pointer when undoing a dequeue