[Bug 1283309] [NEW] bash built-in read timeout (-t) doesn't work

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This should timeout after 2 seconds (based on bash man page) but it doesn't:
#read -t 2 test
(waits infinitely, only terminates after pressing [enter] or ctrl-C, etc..)

bash --version:
GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu)

Installed bash package version:
4.2-2ubuntu2.1

$ lsb_release -rd
Description:	Ubuntu 12.04.4 LTS
Release:	12.04

** Affects: bash (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bash read timeout
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bash built-in read timeout (-t) doesn't work
https://bugs.launchpad.net/bugs/1283309
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