There's currently no way to create a 301 redirect that preserves all query parameters. This is useful for urls' that have a lot of potential querystrings that might come in various order.
How it works today:
E.g. given the following 301 redirect set up in webflow:
old path: /old-url(.*)
redirect to: /new-url%1
and a user that enters /old-url?foo=bar
will have the user redirected to /new-url
How it's expected to work
The query string is preserved and the user ends up on /new-url?foo=bar