rebasedPatchSetSenderFactory.create(change);
cm.setFrom(user.getAccountId());
cm.setPatchSet(rebasedPatchSet);
cm.addReviewers(oldReviewers);
cm.addExtraCC(oldCC);
cm.send();
hooks.doPatchsetCreatedHook(change, rebasedPatchSet, db);
} finally {
revWalk.release();
}