transport-helper.c: do not overwrite forced bit

diff --git a/t/t4211-line-log.sh b/t/t4211-line-log.sh
index 8ba2d511e598a148d781c21ee358a266b0f5b16b..7369d3c517294feda894eba85f7b02ac9a57ccae 100755 (executable)
--- a/t/t4211-line-log.sh
+++ b/t/t4211-line-log.sh
@@ -48,6 +48,7 @@ canned_test "-M -L '/long f/,/^}/:b.c' move-support" move-support-f
 canned_test "-M -L ':f:b.c' parallel-change" parallel-change-f-to-main
 
 canned_test "-L 4,12:a.c -L :main:a.c simple" multiple
+canned_test "-L 4,18:a.c -L ^:main:a.c simple" multiple-overlapping
 canned_test "-L :main:a.c -L 4,18:a.c simple" multiple-overlapping
 canned_test "-L 4:a.c -L 8,12:a.c simple" multiple-superset
 canned_test "-L 8,12:a.c -L 4:a.c simple" multiple-superset