[regression 8.15.0->8.16.0] --max-redirs -1 treated as --max-redirs 0

[aclight]

I did this

.\curl.exe --max-redirs -1 --follow http://google.com
curl: (47) Maximum (0) redirects followed

I expected the following

I expected curl to follow as many redirects as necessary to get the contents at the URL (basically response=200)

curl/libcurl version

curl 8.16.0 (x86_64-w64-mingw32) libcurl/8.16.0 LibreSSL/4.1.0 zlib/1.3.1.zlib-ng brotli/1.1.0 zstd/1.5.7 WinIDN libpsl/0.21.5 libssh2/1.11.1 nghttp2/1.67.1 ngtcp2/1.15.1 nghttp3/1.11.0
Release-Date: 2025-09-10
Protocols: dict file ftp ftps gopher gophers http https imap imaps ipfs ipns ldap ldaps mqtt pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp ws wss
Features: alt-svc AsynchDNS brotli CAcert HSTS HTTP2 HTTP3 HTTPS-proxy IDN IPv6 Kerberos Largefile libz NTLM PSL SPNEGO SSL SSLS-EXPORT SSPI threadsafe UnixSockets zstd

operating system

Microsoft Windows 11 Pro (24H2)

[aclight]

This appears to be caused by b059f7d, where value_range clips value to be within min,max. In this case -1 is clipped to 0. https://curl.se/libcurl/c/CURLOPT_MAXREDIRS.html states that -1 is a valid value for CURLOPT_MAXREDIRS, which is technically still true since using -1 doesn't cause an error, but it also doesn't have the expected effect.