if (branchId != null) {
return true;
}
long assumedHeadRevision = this.mongoSync.getHeadRevisionId();
MongoSync mongoSync = new SaveAndSetHeadRevisionAction(nodeStore,
assumedHeadRevision, revisionId).execute();
if (mongoSync == null) {
// There have been commit(s) in the meantime. If it's a conflicting
// update, retry the whole operation and count against number of retries.
// If not, need to retry again (in order to write commits and nodes properly)