Error running texts after successful installation

After a successful fresh installation of vre-language there was an unresolved dependency.

(test) [jk7683@uc2n996 vre-language]$ python -m pip install .[test]
...
(test) [jk7683@uc2n996 vre-language]$ texts
Traceback (most recent call last):
  File "temp/test/bin/texts", line 5, in <module>
    from virtmat.language.cli import texts
  File "temp/test/lib64/python3.8/site-packages/virtmat/language/cli/__init__.py", line 3, in <module>
    from . import run_session
  File "temp/test/lib64/python3.8/site-packages/virtmat/language/cli/run_session.py", line 8, in <module>
    from virtmat.language.interpreter.session_manager import SessionManager
  File "temp/test/lib64/python3.8/site-packages/virtmat/language/interpreter/session_manager.py", line 11, in <module>
    from virtmat.middleware.engine.wfengine import WFEngine
ModuleNotFoundError: No module named 'virtmat.middleware'