gdiplus: Set GDI world xform to the identity xform on acquisition.

dlls/gdiplus/graphics.c

@@ -6789,6 +6789,7 @@ GpStatus gdi_transform_acquire(GpGraphics *graphics)
     if (graphics->gdi_transform_acquire_count == 0 && graphics->hdc)
     {
         graphics->gdi_transform_save = SaveDC(graphics->hdc);
+        ModifyWorldTransform(graphics->hdc, NULL, MWT_IDENTITY);
         SetGraphicsMode(graphics->hdc, GM_COMPATIBLE);
         SetMapMode(graphics->hdc, MM_TEXT);
         SetWindowOrgEx(graphics->hdc, 0, 0, NULL);

dlls/gdiplus/tests/graphics.c

@@ -7012,7 +7012,7 @@ static void test_gdi_interop_hdc(void)
     expect(0x00aa00ff, bits[6 * 100 + 6]);
     expect(0x00aa00ff, bits[26 * 100 + 26]);
     expect(0x00aa00ff, bits[36 * 100 + 36]);
-    todo_wine expect(0xffaa00ff, bits[86 * 100 + 86]);
+    expect(0xffaa00ff, bits[86 * 100 + 86]);
 
     DeleteDC(src_hdc);
     DeleteObject(hbm);