File save dialog mixes search and file name
When the file save dialog opens, the proposed name of the file is highlighted. When typing, this highlighted text is replace, which is fine!
However, when one clicks at a folder to enter said folder, the text in the upper area is still highlighted. So naturally, a user would assume that typing inside one window overwrites highlighted text in the same window. However, typing now searches in the file navigation area of the window.
This is bad UX, because it breaks the intuition of users. Proposed solutions:
Remove the selection from the file name task once the file searching functionality is activated (so after the first click into the file navigation area).
[Optionally] Only activate the search as you type in the file navigation area after a certain keystroke was pressed, e.g. CTRL + F.