sha1-lookup: handle duplicate keys with GIT_USE_LOOKUP

diff --git a/t/t9001-send-email.sh b/t/t9001-send-email.sh
index 2a6f444bf83dcd3d4ddfb324836e2217da2c1ff1..d6f0271866173be0fdaf6d1308b1027e882f9b30 100755 (executable)
--- a/t/t9001-send-email.sh
+++ b/t/t9001-send-email.sh
@@ -956,7 +956,7 @@ test_expect_success $PREREQ 'utf8 author is correctly passed on' '
        grep "^From: Füñný Nâmé <odd_?=mail@example.com>" msgtxt1
 '
 
-test_expect_failure $PREREQ 'utf8 sender is not duplicated' '
+test_expect_success $PREREQ 'utf8 sender is not duplicated' '
        clean_fake_sendmail &&
        test_commit weird_sender &&
        test_when_finished "git reset --hard HEAD^" &&