drone 0.8.6 will lost user avatar when gitlab tag evnet trigger , push event is normal.
there is a example : https://gitlab.drone.wsl.fun/shynome/drone-test , the user avatar img url is null
Drone version 0.9 uses a new library for parsing the webhook payloads and is able to capture avatars in tag events. So you will have to wait until version 0.9 is available.
This is the new library:
This is an example, parsed payload with avatar
thank you , hope 0.9 come faster