$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-discover.git /var/lib/mock/f40-build-2701826-70498/root/chroot_tmpdir/scmroot/rust-gix-discover
Cloning into '/var/lib/mock/f40-build-2701826-70498/root/chroot_tmpdir/scmroot/rust-gix-discover'...
$ git fetch origin 03e012cc05ff6aa8ed8232989d57b921e59c29da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-discover
 * [new ref]         03e012cc05ff6aa8ed8232989d57b921e59c29da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 03e012c Update to version 0.31.0 (rhbz#2253265)