http header parse invalid when request multiple url request in one session

[topelinux]

to produce
start the ./functional-test-server
then

curl -X GET --header "content-type: application/json"  -v   http://127.0.0.1:8080/echo --next --header "content-type: application/json"  -v   http://127.0.0.1:8080/headers

the expected behavior is the receive on client side

Host: 127.0.0.1:8080
User-Agent: curl/8.1.2
Accept: */*
content-type: application/json

the acutul behavior is no response on server side, for the server the url is not valid parsed, added the screenshot for information

[DarkCat5501]

I'm facing almost the same problem,but noticed that it doest event need to call any methods, here's a quick example:

when making requests with insomnia:

i noticed that it is happenig whenever the target length increases it causes the next request to not reset the size and leak data from the rest of the header.

Also, sometimes the oposite happens, and the target doesn't update, showing the last request's target