$ git clone -n https://src.fedoraproject.org/rpms/rust-http.git /var/lib/mock/f40-build-2497317-61664/root/chroot_tmpdir/scmroot/rust-http
Cloning into '/var/lib/mock/f40-build-2497317-61664/root/chroot_tmpdir/scmroot/rust-http'...
$ git fetch origin a12882cb66f93c370e060caa8bcd414c65ffdd86:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-http
 * [new ref]         a12882cb66f93c370e060caa8bcd414c65ffdd86 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a12882c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild