Classic: fix rotatesprite with no screen scaling and non-widescreen aspects.

Also, enable showing sprites in Mapster32's overhead view again, since that
was one (the only?) use of that code path.  The uninitialized read was
introduced in r2927.

git-svn-id: https://svn.eduke32.com/eduke32@3144 1a8010ca-5511-0410-912e-c29ae57300e0

polymer/eduke32/build/src/engine.c

@@ -6886,9 +6886,14 @@ void dorotspr_handle_bit2(int32_t *sxptr, int32_t *syptr, int32_t *z, int32_t da
         {
             *ret_yxaspect = (12<<16)/10;
             *ret_xyaspect = (10<<16)/12;
-
-            // *sxptr and *syptr and *z are left unchanged
         }
+        else
+        {
+            *ret_yxaspect = yxaspect;
+            *ret_xyaspect = xyaspect;
+        }
+
+        // *sxptr and *syptr and *z are left unchanged
 
         return;
     }

polymer/eduke32/source/astub.c

@@ -10848,7 +10848,7 @@ void ExtPreCheckKeys(void) // just before drawrooms
     //    if (cursectornum >= 0)
     //        fillsector(cursectornum, 31);
 
-    if (0 && graphicsmode && !m32_sideview && zoom >= 256)
+    if (graphicsmode && !m32_sideview && zoom >= 256)
     {
         for (i=ii=0; i<MAXSPRITES && ii < Numsprites; i++)
         {