google app engine - "=" symbols in GAE TextProperty -

i'm getting strange additional symbols (=) in text property when adding text there via post.
example:
team unstoppable fury being chased p= olice, alonzo , yuuma. vinnie, shorty , kiro=92s skills put = test.
there shouldn't of = symbols in text. co de is:

class fileuploadhandler(blobstore_handlers.blobstoreuploadhandler): def post(self):     game_file = self.get_uploads()[1]     screen_file = self.get_uploads()[0]      if not users.get_current_user():         game_file.delete()         screen_file.delete()         self.redirect(users.create_login_url("/"))         return      game = game()     game.title = self.request.get('title')     game.url_name = self.request.get('url')     if self.request.get('active') == 'active':         game.active = true                                                                                                                                                           else:                                                                                                                                                                                game.active = false                                                                                                                                                          if self.request.get('featured') == 'featured':                                                                                                                                       game.featured = true                                                                                                                                                         else:                                                                                                                                                                                game.featured = false                                                                                                                                                        query = category.gql("where url_name = :url_name", url_name=self.request.get('category'))                                                                                        game.category = query.get()                                                                                                                                                      game.width = int(self.request.get('width'))                                                                                                                                      game.height = int(self.request.get('height'))                                                                                                                                    game.description = db.text(self.request.get('desc'))     game.how_to_play = db.text(self.request.get('htp'))                                                                                                                              game.game_file = game_file                                                                                                                                                       game.game_screenshot = screen_file                                                                                                                                                db.put(game) 

what doing wrong?

this known issue of blobstore handler breaking data encoding.