I can't seem to delete(backspace) the first character from the F7 Mkdir window.

Reproducible: Always

Steps to Reproduce:
1. Press F7
2. Type something
3. Realize it's a mistake, try to delete the whole thing by holding backspace
Actual Results:  
All except the first character get deleted

Expected Results:  
All characters should go away

It seems that any operation that will result in 0 characters left in that textbox will fail:
* Backspacing
* Delete by having the cursor before first character
* Selecting everything and pressing delete
    * Trying to replace it by selecting everything and typing over does work though