repl: fix pasting after moving the cursor to the left #643

Job	Run time
Build slim tarball	1m 31s
aarch64-linux: with shared libraries	2h 16m 36s
aarch64-darwin: with shared libraries	2h 41m 32s
x86_64-linux: with shared libraries	2h 19m 14s
x86_64-darwin: with shared libraries	3h 54m 7s
	11h 13m 0s

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