Stale file in Debian after change of equivs package

[mad <mad@sharktooth.de>]

Hi!

I am using equivs to create simple packages with dependencies and a few
files.

Now I removed one file from the equivs package and installed the
resulting deb file. The deb file does not contain the file but dpkg did
not remove the old file and says that the file belongs to the package.

What did I do wrong?

Example -> Old package:

$ dpkg-deb -c package1.deb
/etc/test1.conf

$ dpkg -L package1
/etc/test1.conf

New package:

$ dpkg-deb -c package1.deb
/etc/test2.conf

$ dpkg -L package1
/etc/test2.conf
/etc/test1.conf

TIA
mad