Wrong conjugation for assimilated roots

[ronyut]

Jabalin produces wrong conjugation for assimilated roots.
For example, the root وضع in imperfect tense should lose the و.
However, Jabalin produces the conjugations with و.

Take a look here in Jabalin website:
http://elvira.lllf.uam.es/jabalin/flexionarLema.php?offset=25&lema=%D9%88%D8%B6%D8%B9&raiz=%D9%88%D8%B6%D8%B9&cod_lema=00L0002