$ git clone -n https://src.fedoraproject.org/rpms/rust-clap_lex.git /var/lib/mock/f39-build-1488679-34499/root/chroot_tmpdir/scmroot/rust-clap_lex
Cloning into '/var/lib/mock/f39-build-1488679-34499/root/chroot_tmpdir/scmroot/rust-clap_lex'...
$ git fetch origin 810caa411188c696388bbe643b54815e4e9d5224:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-clap_lex
 * [new ref]         810caa411188c696388bbe643b54815e4e9d5224 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 810caa4 Update to version 0.5.1; Fixes RHBZ#2234510