KDE runaway process catcher applet always reports programs with an empty name

The "<y/n> y" below indicates that the dialog box had two choices - a "yes" button and a "no" button, and that I clicked on the "yes" button.

Occasionally (e.g. after logging in) the KDE runaway process catcher reports:

First dialog:
A program called '' is slowing down the others on your machine. It may have a bug that is causing this, or it may just be busy.
Would you like to try to stop the program? <y/n> n

Second dialog:
In future, should busy programs called '' be ignored? <y/n> y

It doesn't matter how many times I answer this question about programs with an empty name (presumably on-the-fly scripts) - the runaway process catcher applet asks me every time.
I looked in its configuration - an empty entry is there.

Two other points:
1. There really should be one dialog with a radio button
    stop? *yes *no. If the user selects "no" another radio button list is enabled asking ignore? *yes *no. This is just a quibble.

2. This problem is just a special case - it's just as annoying when the runaway process catcher applet asks me about "python" or "bash" - there's not enough context for it to work with, so maybe there should be a filter for these.