if self.changes.hasData():
            self.lastChange = self.lastPoll
            who = self.changes.getWho()
            date = self.changes.getDate()
            log = self.changes.getLog()
            if self.changes.hasFile():
                revs.append(self.changes.getRevision())
                files.append(self.changes.getFile())
            while self.changes.nextFileNode():
                revs.append(self.changes.getRevision())
                files.append(self.changes.getFile())
            c = changes.Change(who = who,
                               files = files,
                               comments = log,
                               when = date,
                               branch = self.branch)
            self.parent.addChange(c)
            while self.changes.nextCiNode():
                who = self.changes.getWho()
                date = self.changes.getDate()
                log = self.changes.getLog()
                if self.changes.hasFile():
                    revs.append(self.changes.getRevision())
                    files.append(self.changes.getFile())
                while self.changes.nextFileNode():
                    revs.append(self.changes.getRevision())
                    files.append(self.changes.getFile())
                c = changes.Change(who = who,
                                   files = files,
                                   comments = log,
                                   when = date,
                                   branch = self.branch)
                self.parent.addChange(c)