id	summary	reporter	owner	description	type	status	priority	component	severity	resolution	keywords	cc	release
10207	Cannot update a ticket while changing child ticket to patent ticket(and vice versa) with a 'comment'.	anonymous	Noah Kantrowitz	"While changing child ticket to parent ticket in  a ticket ,If we give some comment and submit both then there is no update in ticket and There is Integrity Error

IntegrityError: columns ticket, time, field are not unique

File ""C:/SDWorkbenchServer/python/lib/site-packages/trac-0.12.2-py2.7.egg/trac/web/main.py"", line 511, in _dispatch_request
  dispatcher.dispatch(req)
File ""C:/SDWorkbenchServer/python/lib/site-packages/trac-0.12.2-py2.7.egg/trac/web/main.py"", line 237, in dispatch
  resp = chosen_handler.process_request(req)
File ""C:/SDWorkbenchServer/python/lib/site-packages/trac-0.12.2-py2.7.egg/trac/ticket/web_ui.py"", line 169, in process_request
  return self._process_ticket_request(req)
File ""C:/SDWorkbenchServer/python/lib/site-packages/trac-0.12.2-py2.7.egg/trac/ticket/web_ui.py"", line 541, in _process_ticket_request
  self._do_save(req, ticket, action)
File ""C:/SDWorkbenchServer/python/lib/site-packages/trac-0.12.2-py2.7.egg/trac/ticket/web_ui.py"", line 1238, in _do_save
  cnum=internal_cnum):
File ""C:/SDWorkbenchServer/python/lib/site-packages/trac-0.12.2-py2.7.egg/trac/ticket/model.py"", line 360, in save_changes
  listener.ticket_changed(self, comment, author, old_values)
File ""C:/SDWorkbenchServer/python/lib/site-packages/tracmastertickets-3.0.2-py2.7.egg/mastertickets/api.py"", line 120, in ticket_changed
  links.save(author, comment, tkt.time_changed, db)
File ""C:/SDWorkbenchServer/python/lib/site-packages/tracmastertickets-3.0.2-py2.7.egg/mastertickets/model.py"", line 83, in save
  (n, when_ts, author, 'comment', '', '(In #%s) %s'%(self.tkt.id, comment)))
File ""C:/SDWorkbenchServer/python/lib/site-packages/trac-0.12.2-py2.7.egg/trac/db/util.py"", line 65, in execute
  return self.cursor.execute(sql_escape_percent(sql), args)
File ""C:/SDWorkbenchServer/python/lib/site-packages/trac-0.12.2-py2.7.egg/trac/db/sqlite_backend.py"", line 78, in execute
  result = PyFormatCursor.execute(self, *args)
File ""C:/SDWorkbenchServer/python/lib/site-packages/trac-0.12.2-py2.7.egg/trac/db/sqlite_backend.py"", line 56, in execute
  args or [])
File ""C:/SDWorkbenchServer/python/lib/site-packages/trac-0.12.2-py2.7.egg/trac/db/sqlite_backend.py"", line 48, in _rollback_on_error
  return function(self, *args, **kwargs)
"	defect	new	normal	MasterTicketsPlugin	normal				0.12