Wodrpess redirect with ampersand sign in URL, why and how to get rid of it?

Question

htaccess

Hello! maybe someone came across such a miracle, when you go to the url localhost/?&aaa=aa there is a 301 redirect to the page localhost/?aaa=aa, that is, it stupidly removes the sign &

tell me pliz who faced this? I assume that you need to set up the .htaccess file so that it does not redirect, but my knowledge is not so deep in this, can you please tell me how to set up .htaccess correctly?