1 - Set up a local folder with 2 jpg images of less and more than 1 MB respectively.
2 - Go to Dolphin Preferences. General -> Previews and check "JPEG Images" from
the list. Check "Local files" and set "Skip previews for files above:" to 1MB.
3 - Navigate to afore mentioned folder. Only the image of size less than 1 MB should
show a preview.
BUG: 331240