It has been observed that filenames which contain newline characters have the
newlines (0x0a) replaced with a space character (0x20) when checked out with a
1.7 client (ra_neon).
Other RA layers retain the 0x0a character in the filename.
While a filename containing 0x0a causes many others issues (see issue #4340) we
should investigate where and why this transformation occurs. Interesting
questions include whether this problem is specific to ra_neon, and whether it
only affects newlines or also other kinds of whitespace.