Can't backup single soft symlink folder

I have a folder like this:

dir 2020-10-16
dir 2020-10-17
dir 2020-10-18
symlink latest -> 2020-10-18

in my filters file, I have this:
+latest
+latest/
+latest/*
-*

I want to backup ONLY the most recent folder (the symlink called latest points to it)

However, it backs up nothing, because 2020-10-18 (or whatever latest points to) is excluded by -*

So, now I’m using a script to modify filters file before every run to specifically backup whatever the newest folder is.

Is there a better way to go about this?

Try the reverse order:

+latest/*
+latest/
+latest
-*