$ git clone -n https://src.fedoraproject.org/rpms/drumstick.git /var/lib/mock/f40-build-2197914-51685/root/chroot_tmpdir/scmroot/drumstick
Cloning into '/var/lib/mock/f40-build-2197914-51685/root/chroot_tmpdir/scmroot/drumstick'...
$ git fetch origin 8246f91322fef3177db0f6344f74247875a1d978:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/drumstick
 * [new ref]         8246f91322fef3177db0f6344f74247875a1d978 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8246f91 New release 2.8.1(RHBZ#2234764)