Non-standard debian packages cause package-reporter run at shorter intervals

If a client has available in his repositories packages that don't respect the Debian packaging standards[1] the package-reporter runs approximately every 85 seconds. This causes frequent CPU spikes which makes the client almost non-usable.

Examples:
-a package named 'my_package' because it uses underscore in the name.
-a package with version 'my-1st-Test'. In this case the issue is the capital 'T' which is not allowed as only lowercase letters are accepted in the version naming.

Log example:
/var/log/landscape-server/message-server.log.9.gz:Dec 8 01:12:17 message-server-1 WARNING Dropped invalid package 'my_package' for computer 123
/var/log/landscape-server/message-server.log.9.gz:Dec 8 01:12:17 message-server-1 WARNING Dropped invalid package 'my-test' with version 'my-1st-Test' for computer 123

[1] https://www.debian.org/doc/debian-policy/ch-controlfields.html#s-f-Source