Description of problem:
While upgrading distro from 19 to 20 Alpha, I realized that some packages in 20 20 Alpha doesn't have botan.
Please see below:

Error: Package: monotone-1.0-11.fc19.x86_64 (@fedora/19)
           Requires: libbotan-1.8.2.so()(64bit)
           Removing: botan-1.8.14-2.fc19.x86_64 (@fedora/19)
               libbotan-1.8.2.so()(64bit)
           Updated By: botan-1.10.5-4.fc20.x86_64 (fedora)
               Not found


Version-Release number of selected component (if applicable):
20

How reproducible:
Have Fedora 19 distro rawhide, never moved to final release.
Trying to upgrade to 20 alpha.


Steps to Reproduce:
1. yum --releasever=20 distro-sync

Actual results:
Failure to upgrade because of dependencies

Expected results:
Successful upgrade

Additional info:

[root@ioFedora ~]# cat /etc/redhat-release 
Fedora release 19 (Schrödinger’s Cat)

[root@ioFedora ~]# uname -a
Linux ioFedora 3.11.3-201.fc19.x86_64 #1 SMP Thu Oct 3 00:47:03 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux