From 36b799877321a521fc31c6797e428425d8f1d3ba Mon Sep 17 00:00:00 2001
From: ramox81 <184937705+ramox81@users.noreply.github.com>
Date: Fri, 11 Sep 2026 11:05:52 +0300
Subject: [PATCH] Preserve unsupported closed spline deletion state

---
 src/modules/draw/modify/splinedit.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/modules/draw/modify/splinedit.rs b/src/modules/draw/modify/splinedit.rs
index 0007d0402..663adf959 100644
--- a/src/modules/draw/modify/splinedit.rs
+++ b/src/modules/draw/modify/splinedit.rs
@@ -217,7 +217,7 @@ impl CadCommand for SplineditCommand {
                 let weights = if source.weights.is_empty() { vec![1.0; source.control_points.len()] }
                     else { source.weights.clone() };
                 let curve = cadkernel::space::NurbsCurve3::new_strict(source.degree as usize, controls,
-                    source.knots.clone(), weights).map(|curve| curve.with_periodicity(source.flags.periodic));
+                    source.knots.clone(), weights).map(|curve| curve.with_periodicity(source.flags.periodic || source.flags.closed));
                 let Some(curve) = curve.and_then(|curve| curve.without_control_vertex(index)) else { return CmdResult::NeedPoint; };
                 let mut spline = source.clone();
                 spline.degree = curve.degree() as i32;