$ git clone -n https://src.fedoraproject.org/rpms/ocp.git /var/lib/mock/f40-build-2617326-64402/root/chroot_tmpdir/scmroot/ocp
Cloning into '/var/lib/mock/f40-build-2617326-64402/root/chroot_tmpdir/scmroot/ocp'...
$ git fetch origin 75b858fc045449c07378241b00d0002cac3f1408:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocp
 * [new ref]         75b858fc045449c07378241b00d0002cac3f1408 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75b858f re-add zip files to sources