From d52c03448585e96fb1f4e2e02172dd773cf2a29c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Miclu=C8=9Ba-C=C3=A2mpeanu?=
 <31181429+SebastianM-C@users.noreply.github.com>
Date: Mon, 13 Jan 2025 22:38:27 +0200
Subject: [PATCH 1/2] Fix `remake` for `SCCNonlinearProblem`

It looks like the `explicitfuns!` argument is directly forwarded to the constructor resulting in broken problems after a remake due to `explicitfuns!` being `missing`.
---
 src/remake.jl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/remake.jl b/src/remake.jl
index 31d013964..f7e48afce 100644
--- a/src/remake.jl
+++ b/src/remake.jl
@@ -824,6 +824,9 @@ function remake(prob::SCCNonlinearProblem; u0 = missing, p = missing, probs = mi
     if probs === missing
         probs = prob.probs
     end
+    if explicitfuns! === missing
+        explicitfuns! = prob.explictfuns!
+    end
     offset = 0
     if u0 !== missing || p !== missing && parameters_alias
         probs = map(probs) do subprob

From f0a22a1dfd7385852655d8e19d0277831ab1a6f6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Miclu=C8=9Ba-C=C3=A2mpeanu?=
 <sebastian.mc95@proton.me>
Date: Wed, 15 Jan 2025 20:09:31 +0200
Subject: [PATCH 2/2] add remake test for SCCNonlinearProblem

---
 test/downstream/modelingtoolkit_remake.jl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/downstream/modelingtoolkit_remake.jl b/test/downstream/modelingtoolkit_remake.jl
index 00cb97d46..b7bfa5fe5 100644
--- a/test/downstream/modelingtoolkit_remake.jl
+++ b/test/downstream/modelingtoolkit_remake.jl
@@ -321,6 +321,7 @@ end
     @test state_values(sccprob2) ≈ 2ones(3)
     @test sccprob2.probs[1].u0 ≈ 2ones(2)
     @test sccprob2.probs[2].u0 ≈ 2ones(1)
+    @test sccprob2.explicitfuns! !== missing
 
     sccprob3 = remake(sccprob; p = [σ => 2.0])
     @test sccprob3.p === sccprob3.probs[1].p