A phone photo stored on its side carries an orientation tag that every
viewer applies, so the frame size alone would reserve a landscape box
for a portrait picture. The JPEG parser now swaps the axes for
orientations 5-8.

Media files read their header through the handle that already passed
the identity check instead of a second open, and only formats the
parser understands are read at all.

Co-Authored-By: Claude Code <noreply@anthropic.com>