$ git clone -n https://src.fedoraproject.org/rpms/gloo.git /var/lib/mock/f45-build-11281-429/root/chroot_tmpdir/scmroot/gloo
Cloning into '/var/lib/mock/f45-build-11281-429/root/chroot_tmpdir/scmroot/gloo'...
$ git fetch origin a98970e2f869a4a38b26e897489ae1ab0be905a5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gloo
 * [new ref]         a98970e2f869a4a38b26e897489ae1ab0be905a5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a98970e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild