$ git clone -n https://src.fedoraproject.org/rpms/drumstick.git /var/lib/mock/f45-build-7768-369/root/chroot_tmpdir/scmroot/drumstick
Cloning into '/var/lib/mock/f45-build-7768-369/root/chroot_tmpdir/scmroot/drumstick'...
$ git fetch origin f07e4d8405a1671373eeaa027ce3a626a3edc011:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/drumstick
 * [new ref]         f07e4d8405a1671373eeaa027ce3a626a3edc011 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f07e4d8 Update to 2.11.0