floating: Return pending geometry on unmap

src/shell/layout/floating/mod.rs

@@ -646,6 +646,9 @@ impl FloatingLayout {
                 mapped_geometry.size = last_size;
             }
         } else if !window.is_maximized(true) {
+            if let Some(pending_size) = window.pending_size() {
+                mapped_geometry.size = pending_size.as_local();
+            }
             *window.last_geometry.lock().unwrap() = Some(mapped_geometry);
         }