Fixing Bad Checksum in SVN Commit

I started getting this messaage

Sending        wiscrowd/mod/freerider/templates/index.htm
Transmitting file data .svn: Commit failed (details follow):
svn: Base checksum mismatch on '/trunk/contrib/drchuck/wiscrowd/mod/freerider/templates/index.htm':
expected:  1c2fe4a8f013f8af2729280d89567095
actual:  2ea55328bc430c0f6e738303e4393f3b
svn: Your commit message was left in a temporary file:
svn:    '/Users/csev/dev/cloudcollab/contrib/drchuck/svn-commit.4.tmp'

The solution was to make a copy of the file, delete the file from svn and then re-add it.

This loses history – but is quick and dirty when you are in a hurry.