fix: generate session_id on delegate call

Author: filipton

src/buttons.rs

@@ -372,11 +372,12 @@ async fn delegate_hold(
                 return Ok(false);
             }
 
-            if state_val.current_competitor.is_none()
-                || state_val.session_id.is_none()
-                || state_val.solve_group.is_none()
-            {
-                log::error!("Delegate hold: competitor, session_id or solve_group none!");
+            if state_val.session_id.is_none() {
+                state_val.session_id = Some(uuid::Uuid::new_v4().to_string());
+            }
+
+            if state_val.current_competitor.is_none() || state_val.solve_group.is_none() {
+                log::error!("Delegate hold: competitor or solve_group none!");
                 return Ok(false);
             }
 

src/state.rs

@@ -292,7 +292,7 @@ impl SignaledGlobalStateInner {
         self.solve_group = None;
         self.error_text = None;
         self.possible_groups.clear();
-        self.group_selected_idx = usize::MAX;
+        self.group_selected_idx = 0;
         self.current_competitor = None;
         self.current_judge = None;
         self.competitor_display = None;