Fix partial redirect bug #2733

Job	Run time
Lint	42s
Test	55s
Docs	1m 43s
Test (charset)	57s
Test	57s
Test (cookies)	1m 14s
Test (charset)	44s
build_versions (stable)	25s
Test (cookies)	57s
Test (socks-proxy)	1m 3s
build_versions (beta)	21s
Test (socks-proxy)	45s
Test (gzip)	1m 3s
build_versions (1.71.1)	15s
Test (gzip)	44s
Test (brotli)	56s
Test (brotli)	52s
Test (json)	55s
Test (json)	1m 4s
Test (native-tls)	1m 6s
Test (native-tls)	1m 8s
cargo-deny (aarch64-apple-ios)	20s
Test (rustls-no-provider)	55s
cargo-deny (aarch64-linux-android)	20s
cargo-deny (i686-pc-windows-gnu)	21s
cargo-deny (i686-pc-windows-msvc)	25s
cargo-deny (i686-unknown-linux-gnu)	19s
cargo-deny (wasm32-unknown-unknown)	21s
cargo-deny (x86_64-apple-darwin)	27s
cargo-deny (x86_64-apple-ios)	21s
cargo-deny (x86_64-pc-windows-gnu)	18s
cargo-deny (x86_64-pc-windows-msvc)	19s
cargo-deny (x86_64-unknown-linux-gnu)	19s
cargo-deny (x86_64-unknown-redox)	20s
	23m 51s

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