$ git clone -n https://src.fedoraproject.org/rpms/perl-DBIx-Class-EncodedColumn.git /var/lib/mock/f42-build-side-1-3578359-46814/root/chroot_tmpdir/scmroot/perl-DBIx-Class-EncodedColumn
Cloning into '/var/lib/mock/f42-build-side-1-3578359-46814/root/chroot_tmpdir/scmroot/perl-DBIx-Class-EncodedColumn'...
$ git fetch origin a6673a8c1fde5fbaca2a2b732b269dbbda7f3fe3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DBIx-Class-EncodedColumn
 * [new ref]         a6673a8c1fde5fbaca2a2b732b269dbbda7f3fe3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6673a8 Package tests