Map Renderer|Fixed: Do not add polyobj edges to angle clipper when vi…

…ewer is in the void

Polyobj half edges should not result in solid angle clipper segments
when the viewer is in the void.

doomsday/engine/portable/src/rend_main.c

@@ -2810,7 +2810,9 @@ static void Rend_RenderBspLeaf(BspLeaf* bspLeaf)
             if(hedge->frameFlags & HEDGEINF_FACINGFRONT)
             {
                 boolean solid = Rend_RenderHEdge(hedge, bspLeaf);
-                if(solid)
+
+                // When the viewer is in the void no wall is "solid".
+                if(solid && !P_IsInVoid(viewPlayer))
                 {
                     C_AddRangeFromViewRelPoints(hedge->HE_v1origin, hedge->HE_v2origin);
                 }