why does distro-sync find packages to downgrade after fedup

[Andre Robatino]

Ranjan Maitra <maitra.mbox.ignored <at> inbox.com> writes:

> On a system not fed up from fedup -- not the one that is hosed for now --
I do the following:
> 
> sudo yum --releasever=21 distro-sync
> ....
> Dependencies Resolved
> 
>
================================================================================
>  Package               Arch          Version                Repository   
 Size
>
================================================================================
> Downgrading:
>  flac                  x86_64        1.3.0-5.fc21           fedora       
571 k
>  flac-libs             x86_64        1.3.0-5.fc21           fedora       
178 k
>  icedtea-web           x86_64        1.5.1-1.fc21           fedora       
1.3 M
>  jogl2                 x86_64        2.0.2-1.fc21           fedora       
4.0 M
>  libRmath              x86_64        3.1.1-7.fc21           fedora       
125 k
>  libRmath-devel        x86_64        3.1.1-7.fc21           fedora       
 31 k
>  sqlite                x86_64        3.8.7-1.fc21           fedora       
449 k
>  sqlite-devel          x86_64        3.8.7-1.fc21           fedora       
114 k
> 
> Transaction Summary
>
================================================================================
> Downgrade  8 Packages
> 
> Total download size: 6.7 M
> Is this ok [y/d/N]: Exiting on user command
> 
> Why does this happen?

Before I clean installed F21, I had flac-libs-1.3.0-3.fc20,
icedtea-web-1.5.1-0.fc20, and sqlite-3.8.7-1.fc20 on F20. You must have had
higher versions than these in order to be downgraded. Which versions do you
have, and which repos did they come from?