Sevagoth's Shadow form affinity gains don't contribute to Syndicate standing

[p_silveira]

Tested on missions, and affinity gained while in Sevagoth's Shadow form don't contribute at all to the chosen syndicate sigil equipped on the warframe. The Shadow can't equip any sigils, so I suspect that may be the cause. Anyways, affinity gained while in Shadow form should contribute to the syndicate whose sigil is equipped on the warframe.

P.S.: only used "matchmaking" tag because using a tag is obligatory here.