If we save a kra file, we are able to click on kra files in the file chooser, to fill in the file name in the save name field. But if I want to save a JPEG file i'm not able to click a kra file in the file chooser, to get it's name in the save name field. 
So, if I export a jpeg file with save as.. I expect the file name field in the file name already filled in with the source file name, instead to show an empty name field, forcing me to type a name that's a just a copy of the kra file.