Testing version: 11413 on Mac OS
What were you doing: Resizing image
What feature did you use: Image resizing handle
What happened: Once the image became full-width, it started to stretch in the vertical dimension, and the adjacent bullet point jumped up above the image.
What did you expect to happen: The image to stop growing one it became full-width and maintain its aspect ratio. The bullet point to not jump around.
Video: