File conflict problem on yum-2.4.3

Hi,

I know 2.4 is old, but since some of my systems are RHEL4-based, yum
2.4.3 is the newest version I can use.
I encountered a file conflict resolution problem. To be precise, yum
didn't detect a conflict when it should have done so.

Here's my system :
RHEL4
python-2.3.4-14.2
rpm-4.3.3-18_nonptl
sqlite-2.8.16-1.2.el4.rf
python-sqlite-1.0.1-1.2.el4.rf
yum-2.4.3-5.el4.fan
mysql-4.1.20-1.RHEL4.1

I wanted to replace redhat's mysql with mysql.com's. Some of the systems
need to replace both client and server, others just needs the client. On
the ones where I replace both client and server, things are working as
expected.

# rpm -qp --provides MySQL-server-5.0.27-0.glibc23.i386.rpm
MySQL
config(MySQL-server) = 5.0.27-0.glibc23
msqlormysql
mysql
mysql-server
MySQL-server = 5.0.27-0.glibc23

# rpm -qp --obsoletes MySQL-server-5.0.27-0.glibc23.i386.rpm
MySQL
mysql
mysql-server

Mysql's rpm obsoletes redhat's, so when I installed MySQL's
MySQL-server, client, shared, and shared-compat, and devel, yum
correctly removes redhat's mysql, mysql-server, and mysql-devel.

HOWEVER

if I install just the client

# rpm -qp --provides MySQL-client-5.0.27-0.glibc23.i386.rpm
mysql-client
MySQL-client = 5.0.27-0.glibc23

# rpm -qp --obsoletes MySQL-client-5.0.27-0.glibc23.i386.rpm
mysql-client

# rpm -qlp MySQL-client-5.0.27-0.glibc23.i386.rpm
/usr/bin/msql2mysql
/usr/bin/mysql
(output truncated)

# rpm -ql mysql
/etc/ld.so.conf.d/mysql-i386.conf
/etc/my.cnf
/usr/bin/msql2mysql
/usr/bin/mysql
(output truncated)

As you can see, MySQL-client SHOULD conflict with redhat's mysql, since
both provide the same files. rpm -ivh / rpm -Uvh tells me so.

#rpm -Uvh MySQL-client-5.0.27-0.glibc23.i386.rpm
Preparing...                ###########################################
[100%]
        file /usr/bin/mysql from install of
MySQL-client-5.0.27-0.glibc23 conflicts with file from package
mysql-4.1.20-1.RHEL4.1
        file /usr/bin/mysql_tableinfo from install of
MySQL-client-5.0.27-0.glibc23 conflicts with file from package
mysql-4.1.20-1.RHEL4.1
(output truncated)

but yum 2.4.3 will happily install MySQL-client.

# yum install MySQL-client-5.0.27-0.glibc23.i386.rpm
Loading "tsflags" plugin
Loading "priorities" plugin
Setting up Install Process
Setting up repositories
kde-redhat-noarch         100% |=========================|  951 B    00:00
dag                       100% |=========================|  951 B    00:00
RHGFS                     100% |=========================|  951 B    00:00
base                      100% |=========================|  951 B    00:00
updates                   100% |=========================|  951 B    00:00
localdir                  100% |=========================|  951 B    00:00
mysql                     100% |=========================|  951 B    00:00
local                     100% |=========================|  951 B    00:00
centos-extras             100% |=========================|  951 B    00:00
Reading repository metadata in from local files
87 packages excluded due to repository priority protections
Parsing package install arguments
Examining MySQL-client-5.0.27-0.glibc23.i386.rpm: MySQL-client -
5.0.27-0.glibc23.i386
Marking MySQL-client-5.0.27-0.glibc23.i386.rpm to be installed
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package MySQL-client.i386 0:5.0.27-0.glibc23 set to be updated
--> Running transaction check

Dependencies Resolved

=============================================================================
 Package                 Arch       Version          Repository        Size
=============================================================================
Installing:
 MySQL-client            i386       5.0.27-0.glibc23 
MySQL-client-5.0.27-0.glibc23.i386.rpm  9.3 M

Transaction Summary
=============================================================================
Install      1 Package(s)
Update       0 Package(s)
Remove       0 Package(s)
Total download size: 9.3 M
Is this ok [y/N]: y
Downloading Packages:
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing: MySQL-client                 ######################### [1/1]

Installed: MySQL-client.i386 0:5.0.27-0.glibc23
Complete!

Something is definitely wrong here.
Any thoughts?

Regards,

Fajar