test: exercise GitHub review-request selector

test/forge-backends.test.sh

@@ -600,6 +600,16 @@ FAKE_REVIEWS='[
 review_requests_stub
 check "supersedes 'a stale approval still owes a verdict': one never re-requested is not requested" 0 "" \
   eq "" forge_pr_review_requests 96
+
+# rig!146 after merge: all three panelists submitted, so the reviews endpoint
+# carries no REQUEST_REVIEW row even though requested_reviewers stayed stale.
+FAKE_REVIEWS_N=3
+FAKE_REVIEWS='[
+  {"user":{"login":"kimi-bot"},"state":"APPROVED","commit_id":"merged","submitted_at":"2026-08-02T14:05:01Z"},
+  {"user":{"login":"glm-bot"},"state":"APPROVED","commit_id":"merged","submitted_at":"2026-08-02T14:14:45Z"},
+  {"user":{"login":"claude-bot"},"state":"APPROVED","commit_id":"merged","submitted_at":"2026-08-02T14:03:39Z"}
+]'
+review_requests_stub
 check "supersedes 'the never-cleared forgejo field collapses to who actually owes': a merged PR yields nobody" 0 "" \
   eq "" forge_pr_review_requests 146
 
@@ -637,14 +647,21 @@ check "supersedes 'a Forgejo request row is not an answer and leaves the login o
 . "$ROOT/lib/forge-github.sh"
 # shellcheck disable=SC2317 # invoked indirectly, by forge_api
 gh() {
-  case "$1 $2" in
-    "api repos/o/r/pulls/55")
-      jq -r '.requested_reviewers[].login' <<'JSON'
+  [ "$1" = api ] || return 1
+  shift
+  local jqexpr="" endpoint=""
+  while [ $# -gt 0 ]; do
+    case "$1" in
+      --jq) jqexpr="$2"; shift ;;
+      -*) ;;
+      *) [ -n "$endpoint" ] || endpoint="$1" ;;
+    esac
+    shift
+  done
+  [ "$endpoint" = repos/o/r/pulls/55 ] || return 1
+  jq -r "$jqexpr" <<'JSON'
 {"requested_reviewers":[{"login":"glm-bot"},{"login":"claude-bot"}]}
 JSON
-      ;;
-    *) return 1 ;;
-  esac
 }
 check "github returns requested_reviewers from the PR object unchanged" 0 "" \
   eq $'claude-bot\nglm-bot' forge_pr_review_requests 55