$ git clone -n https://src.fedoraproject.org/rpms/rust-mac_address.git /var/lib/mock/f40-build-2681805-67962/root/chroot_tmpdir/scmroot/rust-mac_address
Cloning into '/var/lib/mock/f40-build-2681805-67962/root/chroot_tmpdir/scmroot/rust-mac_address'...
$ git fetch origin 5c079fd3d9a275cb0cd6370bb0d8b7badc46d98d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-mac_address
 * [new ref]         5c079fd3d9a275cb0cd6370bb0d8b7badc46d98d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c079fd Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild