frontend/nine: Reset should EndScene

This was reported by some users.

Cc: mesa-stable
Signed-off-by: Axel Davy <davyaxel0@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28232>

src/gallium/frontends/nine/device9.c

@@ -1045,6 +1045,7 @@ NineDevice9_Reset( struct NineDevice9 *This,
     /* XXX: better use GetBackBuffer here ? */
 
     This->device_needs_reset = (hr != D3D_OK);
+    This->in_scene = FALSE; /* Not sure if should be done also for ResetEx */
     return hr;
 }