GH-4811 process also optional TEs when handling BIND

[damyan-ognyanov]

GitHub issue resolved: #4811

Briefly describe the changes proposed in this PR:

Process also optional TEs when handling BIND, Added a test case.

---

PR Author Checklist (see the contributor guidelines for more details):

• my pull request is self-contained
• I've added tests for the changes I made
• I've applied code formatting (you can use mvn process-resources to format from the command line)
• I've squashed my commits where necessary
• every commit message starts with the issue number (GH-xxxx) followed by a meaningful description of the change

[hmottestad]

LGTM!