$ git clone -n https://src.fedoraproject.org/rpms/nitrokey-app.git /var/lib/mock/f39-build-1563307-37477/root/chroot_tmpdir/scmroot/nitrokey-app
Cloning into '/var/lib/mock/f39-build-1563307-37477/root/chroot_tmpdir/scmroot/nitrokey-app'...
$ git fetch origin ee15274bcc72ec9b0b04622bfa9f8f3afbc60e71:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nitrokey-app
 * [new ref]         ee15274bcc72ec9b0b04622bfa9f8f3afbc60e71 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ee15274 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild