ident.c: reword error message when the user name cannot be determined

diff --git a/t/t6030-bisect-porcelain.sh b/t/t6030-bisect-porcelain.sh
index 2ba4b00e526eb00c5d236777f896772c6cad538b..4908e878fee48069fbdc339f17ad6e865111ae00 100755 (executable)
--- a/t/t6030-bisect-porcelain.sh
+++ b/t/t6030-bisect-porcelain.sh
@@ -254,6 +254,18 @@ test_expect_success 'bisect run & skip: find first bad' '
        grep "$HASH6 is first bad commit" my_bisect_log.txt
 '
 
+test_expect_success 'bisect starting with a detached HEAD' '
+
+       git bisect reset &&
+       git checkout master^ &&
+       HEAD=$(git rev-parse --verify HEAD) &&
+       git bisect start &&
+       test $HEAD = $(cat .git/BISECT_START) &&
+       git bisect reset &&
+       test $HEAD = $(git rev-parse --verify HEAD)
+
+'
+
 #
 #
 test_done