[web2py] error on empty submit of retrieve password

[selecta]

if the retrieve password form is submitted without a value web2py
crashes
is this intended?

Traceback (most recent call last):
  File "/home/fkrause/Dev/web2py/gluon/restricted.py", line 186, in
restricted
    exec ccode in environment
  File "/home/fkrause/Dev/web2py/applications/pyMantis/controllers/
default.py", line 178, in <module>
  File "/home/fkrause/Dev/web2py/gluon/globals.py", line 96, in
<lambda>
    self._caller = lambda f: f()
  File "/home/fkrause/Dev/web2py/applications/pyMantis/controllers/
default.py", line 143, in user
    return dict(form=auth())
  File "/home/fkrause/Dev/web2py/gluon/tools.py", line 999, in
__call__
    return self.retrieve_password()
  File "/home/fkrause/Dev/web2py/gluon/tools.py", line 1978, in
retrieve_password
    return self.request_reset_password(next,onvalidation,onaccept,log)
  File "/home/fkrause/Dev/web2py/gluon/tools.py", line 1952, in
request_reset_password
    dict(key=reset_password_key)):
  File "/home/fkrause/Dev/web2py/gluon/tools.py", line 312, in send
    raise Exception('Target receiver address not specified')
Exception: Target receiver address not specified