$ git clone -n https://src.fedoraproject.org/rpms/tlpi.git /var/lib/mock/f38-build-side-42-init-devel-1042457-29760/root/chroot_tmpdir/scmroot/tlpi
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1042457-29760/root/chroot_tmpdir/scmroot/tlpi'...
$ git fetch origin 88937c0e7b30cf1891637d93d760eda8937e11d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tlpi
 * [new ref]         88937c0e7b30cf1891637d93d760eda8937e11d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 88937c0 - Build nonatomic_uint64 on platforms where it is possible. - Include ns_capable as a general tool.