FIX:when init on_set_state(),m_hover_id should be -1

Jira: STUDIO-4955
Change-Id: Ida2c7564ca45cfd331dba933ac3bf93cf2c4cd34

src/slic3r/GUI/Gizmos/GLGizmoAdvancedCut.cpp

@@ -501,6 +501,7 @@ void GLGizmoAdvancedCut::on_set_state()
 
     // Reset m_cut_z on gizmo activation
     if (get_state() == On) {
+        m_hover_id           = -1;
         m_connectors_editing = false;
         reset_cut_plane();