Fix copy and cut on Safari #7551

Job	Run time
Format + check + test	26m 47s
android	36s
Check wasm32 + wasm-bindgen	4m 53s
cargo-deny aarch64-apple-darwin	52s
cargo-deny aarch64-linux-android	49s
cargo-deny i686-pc-windows-gnu	52s
Check Windows	1m 33s
cargo-deny i686-pc-windows-msvc	57s
cargo-deny i686-unknown-linux-gnu	1m 0s
cargo-deny wasm32-unknown-unknown	52s
cargo-deny x86_64-apple-darwin	52s
cargo-deny x86_64-pc-windows-gnu	56s
cargo-deny x86_64-pc-windows-msvc	52s
cargo-deny x86_64-unknown-linux-gnu	1m 2s
cargo-deny x86_64-unknown-linux-musl	1m 1s
cargo-deny x86_64-unknown-redox	1m 4s
	44m 58s

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