$ git clone -n https://src.fedoraproject.org/rpms/accerciser.git /var/lib/mock/f40-build-2074104-49392/root/chroot_tmpdir/scmroot/accerciser
Cloning into '/var/lib/mock/f40-build-2074104-49392/root/chroot_tmpdir/scmroot/accerciser'...
$ git fetch origin da728d0d37ba5fcf4d804d5d5c56eb8d042eb17c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/accerciser
 * [new ref]         da728d0d37ba5fcf4d804d5d5c56eb8d042eb17c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da728d0 Update to 3.42.0