433.15.13. For the purposes of this subdivision III and the regulations made under it, if an investment plan results from a plan merger, within the meaning of subsection 1 of section 16 of the Selected Listed Financial Institutions Attribution Method (GST/HST) Regulations made under the Excise Tax Act (R.S.C. 1985, c. E-15), and it is a selected listed financial institution immediately after the merger, the fiscal year of the investment plan that precedes the fiscal year that includes the day on which the merger occurs and the fiscal year that includes that day are each deemed to end in a different taxation year of the investment plan and both of those taxation years are deemed to follow each other in the same order as the corresponding fiscal years.