How to get rid of cylical request in .htaccess and make CNC?

Question

Apache HTTP Server

We have a page
site.com/?id=1&bla=2&blabla=3
There are tasks for it:
1. Make a pointwise CNC, while not touching the CNC mechanism of the system at all.
2. Make a redirect from the old url to the new one
We make the rule: the CNC works, the page is given as if located at site.com/mychpu And now we need to redirect from the old url to the new one...
RewriteRule ^mychpu$ /?id=1&bla=2&blabla=3 [L]

RewriteCond %{QUERY_STRING} ^id=1&bla=2&blabla=3$
RewriteRule ^.*$ http://site.com/mychpu [R=301,L]

And it turns out a cycle =(
How to make the rule not work in case of internal redirection?
PS There are suspicions that it can be done using the flag, but nothing happened after the shamanism. I understand what can be done, for example, by throwing a php file, and redirect from there. there is a wish to find the decision on pure htaccess.

Answer 1

RewriteCond %{QUERY_STRING} ^id=1&bla=2&blabla=3$
RewriteCond %{REQUEST_FILENAME} !mychpu$
RewriteRule ^.*$ http://site.com/mychpu [R=301,L]

Apparently, to disable cycling, you need to disable it;)
In general, you didn’t write what exactly you have in the cycle, just don’t forget that you will need to exclude the result of the first cycle in the additional RewriteCond.