From e4f5e62e8b1d19bff7971f456d3437876ca18b2e Mon Sep 17 00:00:00 2001
From: Jutho Haegeman <jutho.haegeman@ugent.be>
Date: Tue, 1 Jul 2025 15:38:18 +0200
Subject: [PATCH 1/3] small fix

---
 src/spaces/homspace.jl | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/spaces/homspace.jl b/src/spaces/homspace.jl
index a6ae2bc1c..bdb534663 100644
--- a/src/spaces/homspace.jl
+++ b/src/spaces/homspace.jl
@@ -313,7 +313,10 @@ end
 
 function _subblock_strides(subsz, sz, str)
     sz_simplify = Strided.StridedViews._simplifydims(sz, str)
-    return Strided.StridedViews._computereshapestrides(subsz, sz_simplify...)
+    strides = Strided.StridedViews._computereshapestrides(subsz, sz_simplify...)
+    isnothing(strides) &&
+        throw(ArgumentError("unexpected error in computing subblock strides"))
+    return strides
 end
 
 function CacheStyle(::typeof(fusionblockstructure), W::HomSpace)

From 8fc284be1a7672f509af8e00c15faa27eaa2acc9 Mon Sep 17 00:00:00 2001
From: Jutho Haegeman <jutho.haegeman@ugent.be>
Date: Wed, 2 Jul 2025 02:30:35 +0200
Subject: [PATCH 2/3] try to work around AD bug

---
 test/ad.jl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/test/ad.jl b/test/ad.jl
index e5e2d884d..9cb514ef1 100644
--- a/test/ad.jl
+++ b/test/ad.jl
@@ -105,7 +105,9 @@ end
 # Tests
 # -----
 
-ChainRulesTestUtils.test_method_tables()
+if VERSION <= v"1.11.5"
+    ChainRulesTestUtils.test_method_tables()
+end
 
 Vlist = ((ℂ^2, (ℂ^3)', ℂ^3, ℂ^2, (ℂ^2)'),
          (ℂ[Z2Irrep](0 => 1, 1 => 1),

From 32abaf877594050a5d16843e243b274bd64259a7 Mon Sep 17 00:00:00 2001
From: Jutho Haegeman <jutho.haegeman@ugent.be>
Date: Thu, 3 Jul 2025 23:02:05 +0200
Subject: [PATCH 3/3] disable AD tests on nightly alltogether

---
 test/ad.jl       | 4 +---
 test/runtests.jl | 2 +-
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/test/ad.jl b/test/ad.jl
index 9cb514ef1..e5e2d884d 100644
--- a/test/ad.jl
+++ b/test/ad.jl
@@ -105,9 +105,7 @@ end
 # Tests
 # -----
 
-if VERSION <= v"1.11.5"
-    ChainRulesTestUtils.test_method_tables()
-end
+ChainRulesTestUtils.test_method_tables()
 
 Vlist = ((ℂ^2, (ℂ^3)', ℂ^3, ℂ^2, (ℂ^2)'),
          (ℂ[Z2Irrep](0 => 1, 1 => 1),
diff --git a/test/runtests.jl b/test/runtests.jl
index 2e716fa18..84b4abd79 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -113,7 +113,7 @@ include("tensors.jl")
 include("diagonal.jl")
 include("planar.jl")
 # TODO: remove once we know AD is slow on macOS CI
-if !(Sys.isapple() && get(ENV, "CI", "false") == "true")
+if !(Sys.isapple() && get(ENV, "CI", "false") == "true") && isempty(VERSION.prerelease)
     include("ad.jl")
 end
 include("bugfixes.jl")