Please describe the problem:
I have an UTF8 linux enviroment, and I have files that have invalid characters
for that encoding so nautilus can't read the files' names properly.
When I edit the file to fix the character, the (invalid unicode) string still in
the editing entry, so I need to fix the character, and erase the " (invalid
unicode)" string at the end of the file.

Steps to reproduce:
1. Select a file with invalid unicode message
2. Press F2 or Right-Click->Rename



Actual results:
The " (invalid unicode)" string stills on the text of the entry to change the name.

Expected results:
The " (invalid unicode)" string shouldn't be there, I want to fix the original
string I think that nobody want to adds that string after fixing the bad
characters, so when you try to fix a lot of files (for example, the title of the
album in the mp3 files' titles it's repeated for every file, so I need to delete
the final string every time that I fix each string.

Does this happen every time?
Yes it does.

Other information: