From e91ed3deb89c1c9eb687610cb2c0e9c3322f860e Mon Sep 17 00:00:00 2001
From: letur <magicletur@protonmail.com>
Date: Sun, 13 Sep 2026 11:51:22 +0200
Subject: [PATCH] fix(isolation): record the probe commit's exit status, not
 echo's
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§3's probe printed `committed=$?` after an `echo`, so it always read 0 and
the "a commit still works under hostile signing" assertion proved nothing.
Capture the status right after the commit; against a no-op selftest_isolate
the probe now reports committed=128.

Claude-Session: https://claude.ai/code/session_01TVf5c2rWYcoVREhFKgquNJ
---
 scripts/isolation-selftest.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/isolation-selftest.sh b/scripts/isolation-selftest.sh
index e66ec75..4b31352 100755
--- a/scripts/isolation-selftest.sh
+++ b/scripts/isolation-selftest.sh
@@ -301,8 +301,9 @@ on_debug() {
 	if [ "$_seen" = 1 ] && [ "$depth" -le "$_base" ]; then
 		probe_repo="$(mktemp -d)"
 		(cd "$probe_repo" && git init -q p && cd p && printf x >f && git add f && git commit -qm probe) >/dev/null 2>&1
+		local committed=$?
 		echo "isolated=yes"
-		echo "committed=$?"
+		echo "committed=$committed"
 		echo "branch=$(git -C "$probe_repo/p" rev-parse --abbrev-ref HEAD 2>/dev/null)"
 		echo "hooks=$(git -C "$probe_repo/p" config --get core.hooksPath 2>/dev/null)"
 		echo "home=$HOME"