[Freeciv-Dev] Focus woes (PR#3390)

["Per I. Mathisen" <per@xxxxxxxxxxx>]

# 3390: (per) Focus lost [open]
# 1679: (vasc) Active unit not centered after eXplore [stalled]
# 2324: (pagnin) Unit not in Focus [open]

We have some unresolved focus bugs that I think we should have a look at.
#1679 contains some code that was judged too ugly to include, even though
it fixed one problem, and maybe could fix the others as well.

I need some advice on how to proceed on this. I have tested #3390 and
found that this bug is still present. I think the other two are as well.

  - Per