$ git clone -n https://src.fedoraproject.org/rpms/rust-git-version-macro.git /var/lib/mock/f45-build-41902-786/root/chroot_tmpdir/scmroot/rust-git-version-macro
Cloning into '/var/lib/mock/f45-build-41902-786/root/chroot_tmpdir/scmroot/rust-git-version-macro'...
$ git fetch origin 015e34e62641bcae6dd7a9a7b53c329ad2867188:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-git-version-macro
 * [new ref]         015e34e62641bcae6dd7a9a7b53c329ad2867188 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 015e34e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild