[Apache Bloodhound] #805: maximum recursion depth exceeded when creating ticket from script

[Apache Bloodhound <de...@bloodhound.apache.org>]

#805: maximum recursion depth exceeded when creating ticket from script
-----------------------+----------------------
 Reporter:  wimh       |      Owner:  nobody
     Type:  defect     |     Status:  new
 Priority:  major      |  Milestone:
Component:  trac core  |    Version:  0.8.0dev
 Keywords:             |
-----------------------+----------------------
 email2trac fails on the current trunk. I have reduced the script to the
 part required to reproduce this issue. I'll attach the full script to this
 ticket. The line where the exception is generated is:
 {{{
     tkt = Ticket(env)
 }}}
 part of the traceback:
 {{{
 #!text/plain
 Traceback (most recent call last):
   File "testticket.py", line 32, in <module>
     tkt = Ticket(env)
   File "/var/www/bloodhound/python-virtualenv/lib/python2.7/site-
 packages/trac/ticket/model.py", line 71, in __init__
     self.fields = TicketSystem(self.env).get_ticket_fields()
   File "/var/www/bloodhound/python-virtualenv/lib/python2.7/site-
 packages/trac/ticket/api.py", line 310, in get_ticket_fields
     fields = copy.deepcopy(self.fields)
   File "/usr/lib/python2.7/copy.py", line 163, in deepcopy
 ...
   File "/var/www/bloodhound/python-virtualenv/lib/python2.7/site-
 packages/babel/support.py", line 182, in value
     if self._value is None:
   File "/var/www/bloodhound/python-virtualenv/lib/python2.7/site-
 packages/babel/support.py", line 252, in __getattr__
     return getattr(self.value, name)
   File "/var/www/bloodhound/python-virtualenv/lib/python2.7/site-
 packages/babel/support.py", line 182, in value
     if self._value is None:
   File "/var/www/bloodhound/python-virtualenv/lib/python2.7/site-
 packages/babel/support.py", line 252, in __getattr__
     return getattr(self.value, name)
 RuntimeError: maximum recursion depth exceeded while calling a Python
 object
 }}}
 Note this fails on the current trunk (r1608614), but works fine in the 0.7
 tag.

 I was able to fix the error by changing in {{{python-
 virtualenv/lib/python2.7/site-packages/trac/ticket/api.py
 (get_ticket_fields)}}}
 {{{
         fields = copy.deepcopy(self.fields)
 }}}
 into
 {{{
         fields = []
         for f in self.fields:
             fields.append(copy.copy(f))
 }}}
 But I don't know whether that has disadvantages. I can create tickets in
 the web interface. So it should also be possible to fix this in the
 script.

-- 
Ticket URL: <https://issues.apache.org/bloodhound/ticket/805>
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