$ git clone -n https://src.fedoraproject.org/rpms/rigsync.git /var/lib/mock/f38-build-side-42-init-devel-1407532-31333/root/chroot_tmpdir/scmroot/rigsync
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1407532-31333/root/chroot_tmpdir/scmroot/rigsync'...
$ git fetch origin 68c8e01ecad64e8b4de007042262ed2ac6d05762:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rigsync
 * [new ref]         68c8e01ecad64e8b4de007042262ed2ac6d05762 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 68c8e01 Initial import (fedora#2241725)