t7003: make test repeatable

Signed-off-by: Junio C Hamano <[email protected]>

Author: gitster

t/t7003-filter-branch.sh

@@ -7,6 +7,7 @@ make_commit () {
 	lower=$(echo $1 | tr A-Z a-z)
 	echo $lower > $lower
 	git add $lower
+	test_tick
 	git commit -m $1
 	git tag $1
 }