Group: V 2.44 release
the HOME ('View all') hotkey in the sequencer image preview, rather than zooming the video/image at full view, zooms at the current output resolution.
More or less I'm expecting the behaviour you have in the Image editor: it maximize the clip to the available area.
In the attached file, press HOME in the 2 viewers.
If you change the output resolution (for example 50x50px) and press HOME again on the twos, the IE remain as it is, while the seq changes accordingly.