Bug#176322: dpkg-dev: dpkg-buildpackage confused by compliant version number

[itz@speakeasy.org (Ian Zimmerman)]

Package: dpkg-dev
Version: 1.10.4
Severity: normal

kronstadt:/usr/local/src/debian/emacs21-21.2$ mv ~/downloads/emacs21_21.2.orig.tar.gz ..
kronstadt:/usr/local/src/debian/emacs21-21.2$ dpkg-buildpackage -rfakeroot  -pgpg
dpkg-buildpackage: source package is emacs21
dpkg-buildpackage: source version is 3:21.2-1+custom2
dpkg-buildpackage: source maintainer is Ian Zimmerman <itz@speakeasy.org>
dpkg-buildpackage: host architecture is i386
 fakeroot debian/rules clean
test -f debian/emacs.postinst
/usr/bin/make clean
make[1]: Entering directory `/usr/local/src/debian/emacs21-21.2'
make[1]: *** No rule to make target `clean'.  Stop.
make[1]: Leaving directory `/usr/local/src/debian/emacs21-21.2'
make: [clean] Error 2 (ignored)
/usr/bin/make distclean
make[1]: Entering directory `/usr/local/src/debian/emacs21-21.2'
make[1]: *** No rule to make target `distclean'.  Stop.
make[1]: Leaving directory `/usr/local/src/debian/emacs21-21.2'
make: [clean] Error 2 (ignored)
if test -e debian/upstream-files.tar; \
then \
  rm -rf info/*; \
  find -name "*.elc" | xargs rm; \
  tar xpf debian/upstream-files.tar && rm -f debian/upstream-files.tar; \
fi
rm -f debian/upstream-files.tar.tmp
rm -f debian/stamp-* debian/substvars
find -name '*~' | xargs --no-run-if-empty rm -f
rm -rf \
  debian/tmp-emacs \
  debian/tmp-pkg \
  debian/tmp-pkg-el \
  debian/tmp-alt-list \
          debian/files* \
  config.log \
  core \
  man/Makefile
 dpkg-source -b emacs21-21.2
dpkg-source: error: source package has two conflicting values - emacs3:21 and emacs21
kronstadt:/usr/local/src/debian/emacs21-21.2$ head debian/changelog
emacs21 (3:21.2-1+custom2) unstable; urgency=low

  * Disable toolkit scrollbars.

 -- Ian Zimmerman <itz@speakeasy.org>  Mon, 16 Dec 2002 23:57:24 -0800

emacs21 (21.2-1) unstable; urgency=low

  * new upstream release.
  * move outline of Debian specific Emacs changes to

-- System Information
Debian Release: woody
Kernel Version: Linux kronstadt 2.4.20 #1 Sun Dec 29 17:36:03 PST 2002 i586 unknown

Versions of the packages dpkg-dev depends on:
ii  binutils       2.12.90.0.1-5  The GNU assembler, linker and binary utiliti
ii  cpio           2.5-1          GNU cpio -- a program to manage archives of 
ii  make           3.79.1-14      The GNU version of the "make" utility.
ii  patch          2.5.4-11       Apply a diff file to an original
ii  perl-modules   5.6.1-8.2      Core Perl modules.
ii  perl           5.6.1-8.2      Larry Wall's Practical Extraction and Report
	^^^ (Provides virtual package perl5)