$ git clone -n https://src.fedoraproject.org/rpms/srpc.git /var/lib/mock/f41-build-side-1-2960660-35707/root/chroot_tmpdir/scmroot/srpc
Cloning into '/var/lib/mock/f41-build-side-1-2960660-35707/root/chroot_tmpdir/scmroot/srpc'...
$ git fetch origin 70860f98583aeea4bff2a4828995cf66ee4d80cd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/srpc
 * [new ref]         70860f98583aeea4bff2a4828995cf66ee4d80cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 70860f9 Update to 0.10.3