[mythtv-users] libmyth 0.22 and 0.23 are both installed!?

[mythtv at derdev.com]

I have regained control of my myth BE after upgrading Mythbuntu from 9.10
to 10.04 - 
HOWEVER, apt-get now notifies me that there are updates available to two
(2) libmyths!?!?!?!??!!?!!

Is this normal, do I need to do something to fix this before I proceed? 
Or, should I allow apt to proceed with whatever it wants to upgrade?
I'm using JYA's repository for my myth updates
-----------------------------------------------------------------------------------------------
/etc/apt/sources.list.d# cat avenard.list
deb http://www.avenard.org/files/ubuntu-repos lucid release

The following packages will be upgraded:
  libmyth-0.22-0 libmyth-0.23-0 libmyth-python libmythtv-perl (snip)


dpkg --list | grep -i libmyth
ii  libmyth-0.22-0                       2:0.22.0-fixes24035-0ubuntu5     
             Common library code for MythTV and add-on mo
ii  libmyth-0.23-0                       2:0.23.0+fixes25595-0ubuntu1     
             Common library code for MythTV and add-on mo



 dpkg --list | grep -i myth
ii  libmyth-0.22-0                       2:0.22.0-fixes24035-0ubuntu5     
             Common library code for MythTV and add-on mo
ii  libmyth-0.23-0                       2:0.23.0+fixes25595-0ubuntu1     
             Common library code for MythTV and add-on mo
ii  libmyth-python                       2:0.23.0+fixes25595-0ubuntu1     
             A python library to access some MythTV featu
ii  libmythtv-perl                       2:0.23.0+fixes25595-0ubuntu1     
             A PERL library to access some MythTV feature
ii  mytharchive                          2:0.23.0+fixes25586-0ubuntu1     
             create and burn DVD's from MythTV - binary f
ii  mythbuntu-common                     0.50-0ubuntu1                    
             Mythbuntu application support functions
ii  mythbuntu-control-centre             0.62-0ubuntu1                    
             Mythbuntu Configuration Application
ii  mythbuntu-default-settings           0.96-0ubuntu1                    
             default settings for Mythbuntu
ii  mythbuntu-desktop                    0.59                             
             The Mythbuntu standalone system
ii  mythbuntu-gdm-theme                  0.6-0ubuntu1                     
             Mythbuntu GDM theme
ii  mythbuntu-lirc-generator             0.24-0ubuntu1                    
             Mythbuntu Lirc Configuration Generator
ii  mythbuntu-log-grabber                0.7-0ubuntu1                     
             Mythbuntu repos installer
ii  mythgallery                          2:0.23.0+fixes25586-0ubuntu1     
             Image gallery/slideshow add-on module for My
ii  mythmusic                            2:0.23.0+fixes25586-0ubuntu1     
             Music add-on module for MythTV
ii  mythtv-backend                       2:0.23.0+fixes25595-0ubuntu1     
             A personal video recorder application (serve
ii  mythtv-backend-master                2:0.23.0+fixes25595-0ubuntu1     
             Metapackage to setup and configure a "Master
ii  mythtv-common                        2:0.23.0+fixes25595-0ubuntu1     
             A personal video recorder application (commo
ii  mythtv-database                      2:0.23.0+fixes25595-0ubuntu1     
             A personal video recorder application (datab
ii  mythtv-frontend                      2:0.23.0+fixes25595-0ubuntu1     
             A personal video recorder application (clien
(snip)