Bug#629319: Version number is not allowing more recent versions to be downloaded

[Michael Rutter]

Package: r-cran-vcd
Version: 1:1.2-9-1

I am building a package in Launchpad for Ubuntu called "r-cran-pscl", 
which requires r-cran-vcd. I have built a more recent version of 
r-cran-vcd (1.2-11) which is available in the PPA, but when r-cran-pscl 
is being built, it grabs the older version.

Get:104 http://ftpmaster.internal/ubuntu/ natty/universe r-cran-vcd all 
1:1.2-9-1 [1386 kB]

The older version is missing a dependency, which causes the build to 
fail. However, the build machine cannot grab the correct, newer version 
(r-cran-vcd_1.2-11-1cran1natty0_all.deb). I believe this is caused by 
the "1:" as a prefix to the version number.

I am using Ubunutu 11.04