[Freeciv-Dev] Re: cma bug? (PR#1864) + stealth fighter bug

["Anthony J. Stuckey" <astuckey@xxxxxxxx>]

On Mon, Aug 05, 2002 at 02:49:09PM +0300, Jussi Asp wrote:
> Other bug we saw was ghost-stealth fighters, which were seen on map but 
> they weren't there if you tried to attack them, and they stayed there 
> for many turns. Or maybe it's a feature, how is stealth supposed to 
> work, I don't know..

        It's not how stealth is supposed to work.
        That said, there may be many different ways such a bug could come
about.  Units which were sighted, avoided, and are now in a non-updated or
Fog of War-covered area should remain visible on the map until that tile is
sighted again and they are proven to be gone.  Something might be failing
to remove units in the proof stage.
        There have been examples in the past of people mistyping X-axis and
Y-axis coordinate references.  We might have such a transposition somewhere
in the current client.

        I consider both of these unlikely, but they are both obvious
explanations for behavior similar to what you describe.