Outgoing message to a new unprotected 2-member group is assigned to the 1:1 chat on DC with pgp-contacts

[iequidoo]

• Install DC Android+pgp-contacts and add it as a second device to the existing DC profile (i used DC Desktop for that).
• Using the first device, create an unprotected group with the only contact (except self) and send an unencrypted message.
• On Android+pgp-contacts you'll see that the chat has name "<address> 📧". Moreover, if you already have a 1:1 chat with that contact, this chat will aquire the message. W/o the pgp-contacts branch everything works as expected.

Used versions: DC Desktop 1.58.2 (core 1.159.4) (w/o sign_unencrypted), DC Android + pgp-contacts from deltachat/deltachat-android#3734 (comment)

[link2xt]

We currently ignore unencrypted Chat-Group-ID header completely, this is why such message looks like 1:1 message. Should probably create an ad hoc group without Chat-Group-ID instead so the messages later get assigned to it by References.

[iequidoo]

Haven't retested, but 881f8ff in https://github.com/chatmail/core/compare/link2xt/pgp-contacts claims to fix it. Closing