Wondering about a few rune magic spells

[Xargon]

Ok, at the moment, timeless does not work properly, as was already noted in the bugs thread (but I did not read it...).
It adds a new buff (timeless) to the unit, and every other effect gets the duration of that buff added to its own duration. This fits the description exactly, and the only case that might be unclear are magic spring and similar effects - those still tick down when attacked and can end before timeless does. The problem is that while the unit info shows the extended duration, at least some of the buffs cease giving the corresponding bonus after their original duration. This is definitely the case with divine armor (it's still shown in the unit screen, but the unit does not actually gain the resistances) and may be true for others as well.

Does anyone have experience with this? When I get the time (I am currently timeless), I'll check other spells and maybe have a quick look at the files to see if there is an obvious reason.