git rename detection breaks on files with non ASCII characters in their names

git diff command can quote one file name and leave another unquoted in its output in the diff --git line, see:

$ git diff -C --no-abbrev --full-index -U0 b17f20aeb10f00d9b8c485b996d56470ebbc0948..ae1e8091e1ef8deab29731ebd4f7ba4ec0a536f3
diff --git a/someFile.txt "b/anotherFile\n\r\t.txt"
similarity index 100%
rename from someFile.txt
rename to "anotherFile\n\r\t.txt"

on the https://bitbucket.org/pswiecicki/fe-5176-git-copy-detection-non-ascii-filenames git repository. Apparently GitDiffParser can't cope with it and throws StringIndexOutOfBoundException in such case.

Workaround: switch off git rename detection for affected repository, i.e. change it to none and restart the repository.