Last modified: 2011-04-30 01:20:33 UTC
When the file to be uploaded contains a + in it's name, an error is returned: The file has no extension (like ".jpg"). This is because at some point the + gets translated into a space. Plus signs in the destination file name work well. Bug 10787 describes a similar issue though it's not the same problem. However when fixing this the other bug may be addressed as well.
Actually the upload is working fine, in the destination file name the suffix was missing.