$ git clone -n https://src.fedoraproject.org/rpms/grpc.git /var/lib/mock/f42-build-3360746-45036/root/chroot_tmpdir/scmroot/grpc
Cloning into '/var/lib/mock/f42-build-3360746-45036/root/chroot_tmpdir/scmroot/grpc'...
$ git fetch origin 681ddd5b1c6385d0936f4fa3ccd568cb16ba5c28:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/grpc
 * [new ref]         681ddd5b1c6385d0936f4fa3ccd568cb16ba5c28 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 681ddd5 Rebuilt for abseil-cpp-20250127.0