$ git clone -n https://src.fedoraproject.org/rpms/rust-git-version-macro.git /var/lib/mock/f38-build-side-43-rust-devel-1410415-31417/root/chroot_tmpdir/scmroot/rust-git-version-macro
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1410415-31417/root/chroot_tmpdir/scmroot/rust-git-version-macro'...
$ git fetch origin dd4d1c9708715528b15c20afe1a21035271dc2bd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-git-version-macro
 * [new ref]         dd4d1c9708715528b15c20afe1a21035271dc2bd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd4d1c9 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild