$ git clone -n https://src.fedoraproject.org/rpms/rust-url.git /var/lib/mock/f40-build-2644332-66501/root/chroot_tmpdir/scmroot/rust-url
Cloning into '/var/lib/mock/f40-build-2644332-66501/root/chroot_tmpdir/scmroot/rust-url'...
$ git fetch origin f4d28abb81675f4d949139e6f4eae89bc038e7b8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-url
 * [new ref]         f4d28abb81675f4d949139e6f4eae89bc038e7b8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f4d28ab Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild