$ git clone -n https://src.fedoraproject.org/rpms/kdump-utils.git /var/lib/mock/f45-build-14737-463/root/chroot_tmpdir/scmroot/kdump-utils
Cloning into '/var/lib/mock/f45-build-14737-463/root/chroot_tmpdir/scmroot/kdump-utils'...
$ git fetch origin 6b9a54e9e3553b41bda2048afbd74bc66927c0f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kdump-utils
 * [new ref]         6b9a54e9e3553b41bda2048afbd74bc66927c0f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b9a54e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild