diff --git a/src/Mod/Sketcher/App/SketchObject.cpp b/src/Mod/Sketcher/App/SketchObject.cpp
index 86f55b1789..a02c0a384e 100644
--- a/src/Mod/Sketcher/App/SketchObject.cpp
+++ b/src/Mod/Sketcher/App/SketchObject.cpp
@@ -6066,6 +6066,13 @@ bool SketchObject::insertBSplineKnot(int GeoId, double param, int multiplicity)
     // Trigger update now
     // Update geometry indices and rebuild vertexindex now via onChanged, so that ViewProvider::UpdateData is triggered.
     if (!delGeoId.empty()) {
+        // NOTE: There have been a couple of instances when knot insertion has
+        // led to a segmentation fault: see https://forum.freecadweb.org/viewtopic.php?f=19&t=64962&sid=10272db50a635c633260517b14ecad37.
+        // If a segfault happens again and a `Geometry.touch()` here fixes it,
+        // it is possible that `delGeometriesExclusiveList` is causing an update
+        // in constraint GUI features during an intermediate step.
+        // See 247a9f0876a00e08c25b07d1f8802479d8623e87 for suggestions.
+        // Geometry.touch();
         delGeometriesExclusiveList(delGeoId);
     }
     else {