diff --git a/crates/ui-egui/src/panels/format_shape.rs b/crates/ui-egui/src/panels/format_shape.rs
index 002226d9..4204f1a3 100644
--- a/crates/ui-egui/src/panels/format_shape.rs
+++ b/crates/ui-egui/src/panels/format_shape.rs
@@ -477,16 +477,18 @@ fn fx_slider(
         } else {
             ui.data_mut(|d| d.remove::<f64>(sid));
         }
+        // `changed()` also fires when the slider only rounds the value it shows (55.000000000000007 to 55,
+        // or 0.5 to 1 on focus, which re-added a reflection the pane had just cleared): only a move to
+        // another shown value is an edit. Accessibility and keyboard edits are such moves too.
+        let shown_changed = r.changed() && v.round() != value.round();
         // A slider that only had focus when another control took it (the Reflection "None" button)
         // must not commit its stale value: only an edit the user made is committed on losing focus.
         let edited_id = sid.with("edited");
-        if r.changed() {
+        if shown_changed {
             ui.data_mut(|d| d.insert_temp(edited_id, true));
         }
         let edited = ui.data_mut(|d| d.get_temp::<bool>(edited_id)).unwrap_or(false);
-        // `changed()` alone also fires when the slider only rounds the shown value (55.000000000000007 to 55),
-        // which re-added a reflection the pane had just cleared; a keyboard edit has focus.
-        if r.drag_stopped() || (r.lost_focus() && edited) || (r.changed() && !r.dragged() && r.has_focus()) {
+        if r.drag_stopped() || (r.lost_focus() && edited) || (shown_changed && !r.dragged()) {
             ui.data_mut(|d| {
                 d.remove::<f64>(sid);
                 d.remove::<bool>(edited_id);