[DMN] Unable to set the description of an input cell in the Decision table

It is not possible to save the description of an input cell in the Decision table that is added in the DMN model (DMN Decision). We can add the description and it seems like the change is saved (there is a confirmation pop-up message). However, the description field is empty after the page is reloaded.  See attached screenshot dmn_prp_1.PNG.