"Execute managed windows batch" within "Test Execution" within Testlink looses the defined arguments (both in "single build steps" and as well in "iterative test build steps").

The used windows batch file defines one argument, which is shown as "required arguments".
Clicking on "Define arguments" I can input an argument.
Clicking on "Save", then again on "Configure", to have a look on my Jenkins Job, this argument is lost.

Doing the same outside of Testlink, "Execute manage windows batch" works as it should, the arguments are kept.

I attach a printout with a very simple example, which I only used for testing purposes.

testlink plugin version: 3.1.8