Resolve deferred size comparisons before allocating span slots

src/random.rs

@@ -292,7 +292,7 @@ impl Plan {
                 align: None,
                 ..self.clone()
             }),
-            self.size.map(|_| Plan {
+            self.size.as_ref().map(|_| Plan {
                 size: None,
                 ..self.clone()
             }),
@@ -373,7 +373,7 @@ impl Plan {
             }
             if plan.size.is_some() {
                 if let Some(lens) = edits.sizes.get(&sized) {
-                    plan.size = Some(*lens);
+                    plan.size = Some(lens.clone());
                 }
                 sized += 1;
             }
@@ -716,7 +716,7 @@ impl Sow<'_> {
         }
         let idx = self.sized;
         self.sized += 1;
-        inner.size = Some(self.edits.sizes.get(&idx).copied().unwrap_or(lens));
+        inner.size = Some(self.edits.sizes.get(&idx).cloned().unwrap_or(lens));
     }
 
     /// An alignment over some of the tree, kept where a test can change it.
@@ -852,7 +852,7 @@ impl<Rsc: UiRsc + 'static> Build<'_, Rsc> {
     fn node(&mut self, plan: &Plan) -> StrongWidget {
         let built = self.kind(&plan.kind);
         let id = built.id();
-        if let Some(lens) = plan.size {
+        if let Some(lens) = plan.size.clone() {
             self.rsc.ui_mut().widgets.set_size_rules(id, lens.x, lens.y);
             self.tree.sized.push(id);
         }