Uploade filenames with the string "files" are renamed and break

When uploading a file that contains the string "files", the wizard will remove this string in the link reference but not rename the physical file. This causes the link to not find the file when selecting it.
For instance, upload a file named "Profiles_test.doc"
The upload works and you get a link created but the reference to it is now "Pro_test.doc"
Clicking this link will result in a File not found error.
The physical file has not been changed.

I tried it after updating to the newest beta release and it is still behaving like this.