Were these log files created by the pull ? or they might have been there before ?
the files were not there before the pull, I'm sure.
the files are created in :
MyProjectWC/.git/logs/HEAD (2 GB)
MyProjectWC/.git/logs/refs/heads/master (2 GB)
MyProjectWC/.git/logs/remotes/origin_tfs/tfs (2 GB)
git --version 1.8.0.msysgit.0
git config --get core.logallrefupdates true
also I found that despite I extracted the new version (184.108.40.20621030) but still git tf --version returns '220.127.116.1120827'
the files are dated as '10/30/2012 10:57 AM' but the --version says something else !!!