[swell-foop/arnaudb/wip/gtk4] Fix ghost tiles.

[Arnaud B. <arnaudb src gnome org>]

commit a4ce63fc64235f048ca3c1969d470c5563939c70
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Thu May 21 13:09:19 2020 +0200

    Fix ghost tiles.

 src/game-view.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/game-view.vala b/src/game-view.vala
index e52230d..974eeb2 100644
--- a/src/game-view.vala
+++ b/src/game-view.vala
@@ -201,7 +201,7 @@ private class Board : Widget
                 tiles[x, y] = null;
 
                 SignalHandler.disconnect_matched (tile, SignalMatchType.DATA, 0, 0, null, null, this);
-                tile.destroy ();
+                tile.unparent ();
             }
         }
     }