$ git clone -n https://src.fedoraproject.org/rpms/rust-smart-default.git /var/lib/mock/f40-build-2716726-72677/root/chroot_tmpdir/scmroot/rust-smart-default
Cloning into '/var/lib/mock/f40-build-2716726-72677/root/chroot_tmpdir/scmroot/rust-smart-default'...
$ git fetch origin 0139b4caf6fd2f316693bc67da861f876dc99b4f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-smart-default
 * [new ref]         0139b4caf6fd2f316693bc67da861f876dc99b4f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0139b4c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild