$ git clone -n https://src.fedoraproject.org/rpms/openmpi.git /var/lib/mock/f41-build-side-2-python-2696948-30352/root/chroot_tmpdir/scmroot/openmpi
Cloning into '/var/lib/mock/f41-build-side-2-python-2696948-30352/root/chroot_tmpdir/scmroot/openmpi'...
$ git fetch origin 0bb187c01cb853eb67726e5d3c4667480fb488cc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openmpi
 * [new ref]         0bb187c01cb853eb67726e5d3c4667480fb488cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0bb187c Rebuild with rpm-mpi-hooks-8-10 to fix provides (#2302033)