# HG changeset patch
# User Raphaël Gomès <rgomes@octobus.net>
# Date 2024-03-18 10:25:21
# Node ID e7bbeaa4f0a72d7f656b87864d0826bcd85fea26
# Parent  4976aacae424af29b6949111951132a35cf31735

delta-search: fix crash caused by unbound variable

This code path was apparently not tested. This fixes a crash when cloning the
Tryton repo.

diff --git a/mercurial/revlogutils/deltas.py b/mercurial/revlogutils/deltas.py
--- a/mercurial/revlogutils/deltas.py
+++ b/mercurial/revlogutils/deltas.py
@@ -876,7 +876,8 @@ class _GeneralDeltaSearch(_BaseDeltaSear
             # XXX note that the ordering of the group becomes important as
             # it now impacts the final result. The current order is
             # unprocessed and can be improved.
-            next_idx = self._internal_idx + self._group_chunk_size
+            chunk_size = self.revlog.delta_config.candidate_group_chunk_size
+            next_idx = self._internal_idx + chunk_size
             self.current_group = self._internal_group[
                 self._internal_idx : next_idx
             ]