Placing an image or media with no placement parameters used the selected
item as the frame, and so did a click of the loaded place cursor. On a
line that made a zero-height frame that kept its stroke. All three now
skip items that enclose no area (PathData::encloses_area): lines and
paths whose points all lie on one line get a new frame instead. Frames,
and open paths that enclose an area, take the content as before.
An explicit frame, x, y, spread or width behave as before.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>