OS: Windows 10 64bit
When an image file name contains an ampersand (&), the file name displayed in the tab has two spaces instead of the ampersand. Additionally, after the Alt key is pressed, the ampersand is now displayed as a space followed by an underscore.
Effect: Uncertainty about the file name of the image being displayed.
To reproduce:
1. Rename an image file to "a & b & c.jpg"
2. Open the file in a tab
Actual behaviour (bug): File name displays as "a b c.jpg"

3. Press the Alt key
Actual behaviour (bug): File name displays as "a _b _c.jpg"

Expected behaviour: File name is displayed as "a & b & c" in each case.