sh read command eats backslashes in input?

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Accrding to: http://www.vias.org/linux-knowhow/bbg_sect_08_02_01.html :

-r
If this option is given, backslash does not act as an escape character.
The backslash is considered to be part
of the line. In particular, a
backslash-newline pair may not be used
as a line continuation.

It works on my machine.

$ echo '\&|' | while read -r in; do echo "$in"; done
\&|

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