Not sure if it will resolve the issue, but the French version says:
Cette reformation ne peut pas servir ŕ sortir des figurines (amies ou ennemies) du contact avec l’ennemi si elles étaient au contact avant la reformation. Elles peuvent par contre se retrouves au contact d’autres figurines ennemies.
which translates into:
This reform cannot be used to get models (friend or foe) out of base contact with the enemy, if they were in contact before the reform. However, they can find themselves in contact with different enemy models.
And this is the German version:
Sie darf nicht verwendet werden, um ein Modell (Freund oder Feind) aus dem Basekontakt mit gegnerischen Modellen zu bewegen, wenn es sich vor der Nahkampf-Neuformierung noch in Basekontakt befunden hat. Das Modell kann sich nach der Neuformierung allerdings durchaus mit einem anderen Modell in Basekontakt befinden, wenn du dies bevorzugst.
It cannot be used to get a model (friend or foe) out of base contact with enemy models, if it still was in base contact before the combat reform. However, the model can after the reform definitely be in base contact with a different enemy model, if you prefer.
(Italics mine)
The way it is written all seems to indicate: a friendly model that was in base contact with an enemy model before the combat reform must still be in contact with an enemy model after the combat reform, but that enemy model does not need to be the same.