ash: add another ${v/a/b} test we currently fail

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
diff --git a/shell/ash_test/ash-vars/var_bash5.tests b/shell/ash_test/ash-vars/var_bash5.tests
new file mode 100755
index 0000000..3f49321
--- /dev/null
+++ b/shell/ash_test/ash-vars/var_bash5.tests
@@ -0,0 +1,11 @@
+# This testcase checks whether slashes in ${v/a/b} are parsed before or after expansions
+# in a part
+
+v='a/b/c'
+s='b/c'
+r='e/f'
+echo "${v/$s}"
+echo "${v/$s/d}"
+echo "${v/$s/$r}"
+
+echo Done: $?