Merge pull request #1606 from yztink/fix/ucs-face-selection

UCS FACE picks solid faces again; the UCS snaps to the nearest face corner with X along the nearest edge.

src/app/commands/layerprops.rs

@@ -343,6 +343,7 @@ impl OpenCADStudio {
                                 self.tabs[i].active_cmd = Some(Box::new(picker));
                             }
                             Some((handle, pick)) => {
+                                self.tabs[i].scene.restore_solid_models(&[handle]);
                                 let built = self.tabs[i]
                                     .scene
                                     .solid_models
@@ -351,13 +352,7 @@ impl OpenCADStudio {
                                         use crate::scene::model::solid_model;
                                         let face =
                                             solid_model::nearest_planar_face(body, pick.to_array())?;
-                                        solid_model::planar_face_normal(body, face)
-                                    })
-                                    .and_then(|normal| {
-                                        super::super::helpers::ucs_from_normal(
-                                            pick,
-                                            glam::DVec3::from_array(normal),
-                                        )
+                                        solid_model::planar_face_ucs(body, face, pick.to_array())
                                     });
                                 match built {
                                     Some(ucs) => {