Multibranch pipeline scan is launched if branch name is not found

- Gogs version (or commit ref): 0.11.43.0330
- Jenkins version: 2.107.2
- Jenkins modules used in combination with gogs-webhook-plugin:

Can this be done? I'd like to have a first new branch/build at the first git push in my multibranch pipeline job. Right now, the behavior I'm seeing is that if the branch has not been build once by jenkins (by a scan which is configured by polling or manual triggering) nothing will happen.