$ git clone -n https://src.fedoraproject.org/rpms/apache-commons-io.git /var/lib/mock/f41-build-1232038-22865/root/chroot_tmpdir/scmroot/apache-commons-io
Cloning into '/var/lib/mock/f41-build-1232038-22865/root/chroot_tmpdir/scmroot/apache-commons-io'...
$ git fetch origin 04f478bb8723a6882a49d90a1fc958bf4169d292:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/apache-commons-io
 * [new ref]         04f478bb8723a6882a49d90a1fc958bf4169d292 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04f478b Update to upstream version 2.16.1