Exception in interactive console chains in application exception

[domenkozar]

Steps to reproduce

• create intentional syntax error in a view
• open that view, when you see the traceback, start interactive console
• in interactive console, type something that will result in traceback, for example syntaxerror
• if there is subscribed event to BeforeRender, which does something similar like this

def custom_event(event):
    request = event['request']
    # do something with request, this will fail since request will be None

Expected result:

traceback in web console

Actual result:

request object in event dictionary will be None, code using the request object will result in second unwanted exception breaking interactive console