Should the timeline have partial selections if the whole measure is not selected?

ericfont and I have been discussing here about the possibility of changing how the timeline handles range selections. Currently, the timeline registers a selected measure as having anything inside that measure selected. It then proceeds to draw a thick blue border around it.

ericfont's idea was to introduce partial selection, allowing the user to notice if they have not selected the full measure in the score.
https://user-images.githubusercontent.com/6502474/28496750-15a70446-6f4…
As the picture shows, the selection includes two measures and halfway through the third measure. Another example is below:
https://user-images.githubusercontent.com/6502474/28496847-e95465fc-6f4…
This shows one measure having a partial selection inside it.

A possible problem with this is upon zooming out as far as possible in the timeline (a feature that is currently in my development branch), this partial selection would look like a solid vertical line.

So, the question stands: should the timeline have partial selections if the whole measure is not selected?
Any and all feedback is appreciated!