Wild-card blocking in ftl top lists

I saw this: Advanced filtering for wild card blocking got closed by @jacob.salmela. but then why do i get an error in my ftl whey i try and add a wild card domain:

Error

Top Domains/Ads entry *.example.com is invalid (use only domains)!
The settings have been reset to their previous values

Error

Top Clients entry *.example.com is invalid (use only IP addresses)!
The settings have been reset to their previous values

my pihole seems to be current - i just ran the update before trying it:
#pihole updatePihole
::: Checking for updates...
::: Pi-hole Core: up to date
::: FTL: up to date
::: Web Interface: up to date
:::
::: Everything is up to date!

This error is fixed in the current development version of Pi-hole which has still to be tested and released before you can do an update onto this version.

For now, you can edit the file /etc/pihole/setupVars.conf manually and insert the domain you would like to filter there.