$ git clone -n https://src.fedoraproject.org/rpms/barcode.git /var/lib/mock/f41-build-side-1-3133719-39700/root/chroot_tmpdir/scmroot/barcode
Cloning into '/var/lib/mock/f41-build-side-1-3133719-39700/root/chroot_tmpdir/scmroot/barcode'...
$ git fetch origin 8bbe4033729e4c1ce22bd78f4fef3dbfadbc1b4f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/barcode
 * [new ref]         8bbe4033729e4c1ce22bd78f4fef3dbfadbc1b4f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8bbe403 convert GPLv2+ license to SPDX