Ensure we don't action on the last group when the requested one is not found.

group.c

@@ -160,16 +160,15 @@ group_movetogroup(struct client_ctx *cc, int idx)
 		return;
 
 	TAILQ_FOREACH(gc, &sc->groupq, entry) {
-		if (gc->num == idx)
-			break;
-	}
-
+		if (gc->num == idx) {
 			if (cc->gc == gc)
 				return;
 			if (gc->num != 0 && group_holds_only_hidden(gc))
 				client_hide(cc);
 			group_assign(gc, cc);
 		}
+	}
+}
 
 void
 group_toggle_membership(struct client_ctx *cc)
@@ -221,10 +220,7 @@ group_hidetoggle(struct screen_ctx *sc, int idx)
 		return;
 
 	TAILQ_FOREACH(gc, &sc->groupq, entry) {
-		if (gc->num == idx)
-			break;
-	}
-
+		if (gc->num == idx) {
 			if (group_holds_only_hidden(gc))
 				group_show(gc);
 			else {
@@ -234,6 +230,8 @@ group_hidetoggle(struct screen_ctx *sc, int idx)
 					group_setactive(gc);
 			}
 		}
+	}
+}
 
 void
 group_only(struct screen_ctx *sc, int idx)