$ git clone -n https://src.fedoraproject.org/rpms/rust-erdtree.git /var/lib/mock/f39-build-1676249-40922/root/chroot_tmpdir/scmroot/rust-erdtree
Cloning into '/var/lib/mock/f39-build-1676249-40922/root/chroot_tmpdir/scmroot/rust-erdtree'...
$ git fetch origin 6696280d174be57b7a2a85f955a865d3edd3af4c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-erdtree
 * [new ref]         6696280d174be57b7a2a85f955a865d3edd3af4c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6696280 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild