$ git clone -n https://src.fedoraproject.org/rpms/robodoc.git /var/lib/mock/f41-build-700896-12894/root/chroot_tmpdir/scmroot/robodoc
Cloning into '/var/lib/mock/f41-build-700896-12894/root/chroot_tmpdir/scmroot/robodoc'...
$ git fetch origin ef6c4cffd4d4b5a503a600cb54f4662f2ce1a937:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/robodoc
 * [new ref]         ef6c4cffd4d4b5a503a600cb54f4662f2ce1a937 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef6c4cf Eliminate use of obsolete %patchN syntax (#2283636)