How to reinstall a rpm package with the same Version

[Thorsten Geelhaar <thorsten geelhaar materna de>]

Hello,

I want to reinstall  a rpm package with the same version for test purposes.
For example:

1. rpm -i package_2.1.0
2. rpm -u package_2.1.0

Then the system says package already installed.
If i force it the system makes a new installation, but i will do an update
how can i make it?

Thanks for your help

Thorsten