Bash fails parsing certain statements using process-substitution

Binary package hint: bash

The following 3-line shell script fragment produces a parser error:

cat < <(
    # '
    echo b
)

"./bashbug.sh: line 2: bad substitution: no closing `)' in <("

The statement parses correctly, if I remove the apostrophe from the comment. The bug is reproduceable also with the latest upstream bash v4.2, when compiled from source, so I guess it applies to natty, too.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: bash 4.1-2ubuntu4
ProcVersionSignature: Ubuntu 2.6.35-28.50-generic 2.6.35.11
Uname: Linux 2.6.35-28-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Mon May 9 12:43:13 2011
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: bash