Any jurisdiction exercisable in any proceedings incidental to any cause or matter pending before the civil division of the Court of Appeal and not involving the determination of an appeal may, if and so far as rules of court so provide, be exercised (with or without a hearing) by a single judge of that court, whether in court or in chambers, or by the registrar of civil appeals.

Rules of court may provide for decisions of a single judge or the registrar of civil appeals acting by virtue of subsection (1) to be called in question in such manner as may be prescribed; but, except as may be provided by rules of court, no appeal shall lie from a decision of a single judge or that registrar so acting.

For the purposes of subsection (1) the making of an interlocutory order having the effect of preventing an appeal from reaching the stage of being heard and determined shall not be treated as a determination of the appeal.