[PATCH v2 0/4] Fix locking issues on Windows with `git clone --dissociate`

This is version 2, split into multiple commits for easier digestion.

Max, I hope that this helps also your use case!

Johannes Schindelin (4):
  Demonstrate a Windows file locking issue with `git clone --dissociate`
  Consolidate code to close a pack's file descriptor
  Add a function to release all packs
  clone --dissociate: avoid locking pack files

 builtin/clone.c            |  4 +++-
 cache.h                    |  1 +
 sha1_file.c                | 56 ++++++++++++++++++++++++++++------------------
 t/t5700-clone-reference.sh | 21 +++++++++++++++++
 4 files changed, 59 insertions(+), 23 deletions(-)