$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-odb.git /var/lib/mock/f40-build-2130080-50787/root/chroot_tmpdir/scmroot/rust-gix-odb
Cloning into '/var/lib/mock/f40-build-2130080-50787/root/chroot_tmpdir/scmroot/rust-gix-odb'...
$ git fetch origin b223cb6c932176b4b96aa62a6fd5dcdac5d86c55:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-odb
 * [new ref]         b223cb6c932176b4b96aa62a6fd5dcdac5d86c55 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b223cb6 Update to version 0.54.0