try to fix SecondHalfGames#149 (clipping issue)

crates/yakui-core/src/layout/mod.rs

@@ -175,7 +175,21 @@ impl LayoutDom {
         // If this node enabled clipping, the next node under that is the node
         // that clips this one.
         let clipped_by = if clipping_enabled {
-            self.clip_stack.iter().nth_back(2).copied()
+            let mut iter = self.clip_stack.iter();
+            iter.next_back();
+            iter.next_back();
+
+            let mut result = None;
+            while let Some(id) = iter.next_back().copied() {
+                match dom.get(id).unwrap().widget.flow() {
+                    crate::Flow::Inline => {
+                        result = Some(id);
+                        break;
+                    }
+                    crate::Flow::Relative { .. } => (),
+                }
+            }
+            result
         } else {
             self.clip_stack.last().copied()
         };