Fix logout session teardown

scripts/test-dev-baseline.sh

@@ -45,7 +45,8 @@ status_for() {
     local body="${4:-}"
     local args=(--silent --output /dev/null --write-out '%{http_code}' -X "${method}")
     if [[ -n "${cookie_jar}" ]]; then
-        args+=(-b "${cookie_jar}")
+        # Read and update the jar so logout and refreshed cookies behave like a browser.
+        args+=(-b "${cookie_jar}" -c "${cookie_jar}")
     fi
     if [[ -n "${body}" ]]; then
         args+=(-H 'Content-Type: application/json' --data "${body}")