I have notice new option in trunk config CONFIG_KERNEL_GIT_LOCAL_REPOSITORY. The help says:

  x CONFIG_KERNEL_GIT_LOCAL_REPOSITORY:                                                                   x
  x                                                                                                       x
  x Enter a full pathname to a local reference git repository.                                            x
  x In this instance, the --refererence option of git clone will                                          x
  x be used thus creating a quick local clone of your repo.                                               x
  x                                                                                                       x
  x Symbol: KERNEL_GIT_LOCAL_REPOSITORY [=/usr/src/linux-2.6]                                             x
  x Prompt: Enter path to local reference repository                                                      x
  x   Defined at Config.in:408                                                                            x
  x   Depends on: DEVEL                                                                                   x
  x   Location:                                                                                           x
  x     -> Advanced configuration options (for developers) (DEVEL [=y])                                   x

I have entered the path to my local git repo for kernel (which is just pulled from official Linus repo) as indicated above. But building for new kernel version I noticed that build process used wget to get linux-2.6.36.3.tar.bz2 from internet. What am I doing wrong?