Necro cant remove a talent point in the necrosis tree

[ghostbuster]

So I am a necro, I have completed 'From Death, Life', been killed with lichform on and I am supposed to be a lich.

Now, when I go to the levelup screen and I try to add a talent point in any other talent of the necrosis tree and to remove it immediately (without quitting the levelup screen), I have the following message :

You cannot unlearn this talent because of talent(s):
- Lichform('From Death, Life' quest completed and not already undead)

I do not see why having completed this quest and not beeing an undead would prevent me from adding and removing immedialtely a point in, say, Impending Doom. And anyway, I am an undead....

No problem with other trees.
NB I am runnign with the necro+ addon, but I do not think it touched the necrosis tree.

[Bahndriin]

I can confirm that it's perfectly reproducible with my Shaloren and as of late, Lich, Necromancer. No addons that interfere with talents whatsoever. Fixed in 1.1.4.