[REG 3.1.2->3.2.0] Block selection for search scope looks ugly

1. Open a code file.
2. Move the cursor to the middle of a line.
3. Keep the Shift key pressed while moving the cursor down two lines.
4. Press Ctrl+F.
   You'll see something like this:
   

The left side is wrong. In Creator 3.1.2 this worked correctly. It should look like this: