SVN- Valid UTF-8 data followed by invalid UTF-8 sequence

Today, while working with SVN, the following error message was displayed when I tried to svn update on my production system:

svn: Valid UTF-8 data
(hex: [hex string])
followed by invalid UTF-8 sequence
(hex: [hex string])

Quite unhelpful, isn’t it? I found out that this Problem was caused by a broken file name, and I located the file by running svn -v st which showed me more or less where I had to look for the file. Renamed it, and updating worked again… Don’t know why the subversion dev’s didn’t include the file name in the error message… Would’ve saved me some time.