Test `overwrite_existing` apparent symlink dereferencing #6134

Job	Run time
test	11m 38s
pure-rust-build	2m 7s
cargo-deny	30s
test-journey	4m 1s
WebAssembly (wasm32-wasip1)	43s
lint	1m 13s
test-32bit (arm32v7)	5m 31s
test-fast (ubuntu-24.04-arm)	3m 15s
test-32bit (i386)	5m 34s
test-32bit-windows-size-doc	7m 25s
check-blocking	4s
cargo-deny-advisories	28s
test-fast (ubuntu-latest)	3m 2s
WebAssembly (wasm32-unknown-unknown)	1m 8s
test-fixtures-windows	15m 12s
test-fast (windows-latest)	13m 24s
check-packetline (ubuntu-latest)	7s
test-ext4-casefold (1, B)	5m 56s
test-ext4-casefold (2, B)	3m 57s
test-ext4-casefold (1, A)	5m 50s
test-ext4-casefold (1, C)	6m 16s
test-fast (macos-latest)	2m 35s
test-ext4-casefold (2, D)	2m 12s
test-ext4-casefold (2, F)	3m 17s
test-ext4-casefold (3, A)	3m 25s
test-ext4-casefold (2, A)	2m 17s
test-ext4-casefold (1, F)	6m 19s
test-ext4-casefold (1, E)	5m 53s
test-ext4-casefold (2, C)	2m 6s
test-ext4-casefold (1, G)	5m 59s
test-ext4-casefold (3, C)	3m 31s
test-ext4-casefold (2, G)	4m 0s
test-ext4-casefold (1, D)	5m 57s
test-ext4-casefold (3, F)	3m 30s
test-ext4-casefold (3, B)	3m 27s
test-ext4-casefold (4, A)	3m 14s
test-ext4-casefold (3, D)	3m 31s
test-ext4-casefold (4, F)	2m 2s
test-ext4-casefold (4, G)	2m 35s
test-ext4-casefold (4, C)	2m 39s
test-ext4-casefold (4, D)	1m 57s
test-ext4-casefold (4, E)	3m 16s
test-ext4-casefold (3, E)	3m 35s
test-ext4-casefold (2, E)	2m 56s
test-ext4-casefold (3, G)	3m 27s
test-ext4-casefold (4, B)	1m 52s
Tests pass	2s
	3h 2m 55s

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