$ git clone -n https://src.fedoraproject.org/rpms/agenda.git /var/lib/mock/f40-build-797618-141419/root/chroot_tmpdir/scmroot/agenda
Cloning into '/var/lib/mock/f40-build-797618-141419/root/chroot_tmpdir/scmroot/agenda'...
$ git fetch origin b3077ffe52d30e8081c47baf1787d87de5cecbaa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/agenda
 * [new ref]         b3077ffe52d30e8081c47baf1787d87de5cecbaa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3077ff Fix deprecated developer_name element in AppData XML