Full text
If corollary relief proceedings between the same former spouses and in respect of the same matter are pending in two courts that would otherwise have jurisdiction under subsection (1) and were commenced on different days, and the proceeding that was commenced first is not discontinued, the court in which a corollary relief proceeding was commenced first has exclusive jurisdiction to hear and determine any corollary relief proceeding then pending between the former spouses in respect of that matter and the second corollary relief proceeding is deemed to be discontinued.