My new habit will be to save the scenario file name after I identify the map file name as a "just in case."
That's what I had to do and actually all my converted maps have their respective scenario converted as well.
In the Estab folder I have these Estab files:
BFTBEstab.coe/.xml
Holland44-45Estab.coe/.xml
NormEstab.coe/.xml
I think that two of them comes from custom scenarios that I installed months ago. If I want to be sure that everything will work correctly after a beta patch has been installed, I just have to open and save each of these estab?