When checking the sytax of a model, no feedback is given to the user that the sytax check was successful. If there where errors in the previous sytax check these are removed. Thus the user can see that there are no errors in the current model. A possible solution is to write "No syntax errors" in the error status box.
Well, writing a message in the error list is not going to help for this problem. At the moment the "empty list" is equal to "no error", so writing "no error" is still confusing, since you don't know if there is actually no error or if it is still syntax checking. A popup dialog like in 3.2 would solve the problem, but I always found this to be a bit annoying. Ideally, I would like to have a real status bar and then write a message here. But this will not make it for 3.4. Do you think I should put the "no errors" dialog back into the GUI (as a temporary fix)?
Moved bug to 3.5.7, as fixing a minor bug in a stable release series is not worth the risk.