$ git clone -n https://src.fedoraproject.org/rpms/rust-drg.git /var/lib/mock/f38-build-side-42-init-devel-1301081-30684/root/chroot_tmpdir/scmroot/rust-drg
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1301081-30684/root/chroot_tmpdir/scmroot/rust-drg'...
$ git fetch origin 23e7df6b5e290210ca9b463f7d33be81ebac535e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-drg
 * [new ref]         23e7df6b5e290210ca9b463f7d33be81ebac535e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 23e7df6 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild