[Freeciv-Dev] (PR#15662) SDL client: malformed minimap marker

["Daniel Markstedt" <himasaram@xxxxxxxx>]

<URL: http://bugs.freeciv.org/Ticket/Display.html?id=15662 >

When running a game with mismatched tileset and topology, the map focus
marker on the minimap becomes malformed when approaching the edges of
the map. Again, an ugly but non-fatal glitch. However stuff like this
gives the client an unfinished feel...

-Daniel