Critical Description
When you revert an addition in your working copy, and the item appeared in a
changelist, the working copy becomes corrupt and you can't ever use the filename
again. I built a maintainer mode version from /branches/1.7.x@1155504 which
balks (after a boring stack trace):
svn: E155016: Corrupt data for '...../sandbox/wc/x'
at the end of the test script below and Stefan Sperling confirmed it on trunk.
#!/bin/bash
set -eux
rm -rf sandbox
mkdir sandbox
cd sandbox
svnadmin create repo1
url=file:///$PWD/repo1/trunk
svn mkdir "$url" -m boot
svn co "$url" wc
cd wc
# Need at least one other file, otherwise there's no problem
echo first >first
svn add first
svn commit -m blah
svn up
# Try to add a second file, in an uncertain state of mind
echo second >second
svn add second
svn cl c second
svn revert second
svn st -v --cl c
svn add second
Original issue reported by steinsomers