If I type `:(`, I haveWe should support all the filter for `(main)`.
If I type `:)`namespace aliases, I have the filter for `(main)`.
But If I type `:pedia`,so e.g. I have zero result instead of filterine when you search :Wikipedia: namespace.
So for constancy on a LTR interfacea or :pedia, I'm not supposed to have a result for `:)`it will find Wikipédia.
Exclude `:)` on a LTR interface (and //vice & versa//) is an option(These are already supported, so e.g. The other one (much better) is to have a result when I type an incomplete wordyou can visit Wikipedia:Contact and it will redirect to Wikipédia:Contact, like in `:pedia` -> ":Wikipedia"this is just another use case)
This would help:
* people who make typos.
* people searching for `main` but omitting parentheses
* people who want to search for a namespace by number `:0` for namespace 0See also {T174040}.