How to cut "?" via htaccess?

Question

Apache HTTP Server

Good day!
There is a simple question, but something does not work to solve it.
This is the url
http://mysite.ru/index.php/topic?122.0.html
Should I just replace it? in it on ,
http://mysite.ru/index.php/topic,122.0.html
In theory, a simple rule should work, but it does not.
RewriteRule ^(.*)\?(.*)$ /$1,$2
As soon as screened - does not help. Tried the same with replacing with "\%3F"
I'm testing on htaccess.madewithlove.be
Tell me , plz, how to replace it?

Answer 1

I think RewriteCond %{REQUEST_URI} will help here, it seems like you can't get to "?"

Answer 2

not strong, but maybe something like this:

RewriteCond %{QUERY_STRING} ^(.*)$
RewriteRule ^(.*)$ $1,%1?