Only round up area size after sizing pass

crates/egui/src/containers/area.rs

@@ -508,15 +508,19 @@ impl Prepared {
             enabled: _,
             constrain: _,
             constrain_rect: _,
-            sizing_pass: _,
+            sizing_pass,
         } = self;
 
-        // We round up to an integer point size.
-        // This avoid rounding errors, especially important after a sizing pass.
-        // If during the sizing pass we measure our width to `123.45` and
-        // then try to wrap to exactly that next frame,
-        // we may accidentally wrap the last letter of some text.
-        state.size = content_ui.min_size().ceil();
+        state.size = content_ui.min_size();
+
+        if sizing_pass {
+            // If during the sizing pass we measure our width to `123.45` and
+            // then try to wrap to exactly that next frame,
+            // we may accidentally wrap the last letter of some text.
+            // We only do this after the initial sizing pass though;
+            // otherwise we could end up with for-ever expanding areas.
+            state.size = state.size.ceil();
+        }
 
         ctx.memory_mut(|m| m.areas_mut().set_state(layer_id, state));