[Freeciv-Dev] (PR#10642) win32: assertion on right click

["James Canete" <use_less@xxxxxxxxxxx>]

<URL: http://rt.freeciv.org/Ticket/Display.html?id=10642 >

I was getting an odd assertion from center_tile_mapcanvas()
mapview_common.c whenever I tried to recenter the view in gui-win32.

I took a look at the code and figured it didn't make sense unless "bool
first" was supposed to be static, otherwise it wouldn't be there.

Here's a quick patch.

-James Canete

slidingmapfix.diff
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