This has been very annoying.... The initial clone got the same problem and I had to use --shallow and now the fetch and pull won't work anymore because of the exception... Can anyone give some help?
user@dk01:~/code$ git tf fetch --shallow
Connecting to CODEBASE...
Fetching $/CODE/Main at latest changeset: 0%
git-tf: com.ctc.wstx.exc.WstxIOException: Invalid UTF-8 middle byte 0x27 (at char #536902, byte #536575)