oneway_merge(): only lstat() when told to update worktree

diff --git a/t/t6012-rev-list-simplify.sh b/t/t6012-rev-list-simplify.sh
index af34a1e81711ca183680c9882353bd786b55e79f..839ad97b791c6aa757d0b82eea7fc16369ad4586 100755 (executable)
--- a/t/t6012-rev-list-simplify.sh
+++ b/t/t6012-rev-list-simplify.sh
@@ -86,5 +86,6 @@ check_result 'I H E C B A' --full-history --date-order -- file
 check_result 'I E C B A' --simplify-merges -- file
 check_result 'I B A' -- file
 check_result 'I B A' --topo-order -- file
+check_result 'H' --first-parent -- another-file
 
 test_done