I'm having an odd problem when creating email links using the editor. All spaces and newlines are being entered into the database as ' ;' (space semi-colon), so the output ends up as something like:

<a href="mailto:test@example.com?subject=Hello ;there;&body=This ;is ;a ;test;">Email me</a>

The demo doesn't do it, so it's obviously something I've done wrong, but I haven't been able to nail it down yet. Anyone seen this before, and have any ideas?