$ git clone -n https://src.fedoraproject.org/rpms/perl-NetAddr-IP.git /var/lib/mock/f40-build-2229569-53162/root/chroot_tmpdir/scmroot/perl-NetAddr-IP
Cloning into '/var/lib/mock/f40-build-2229569-53162/root/chroot_tmpdir/scmroot/perl-NetAddr-IP'...
$ git fetch origin 6e70929b056af0da4ea14f199b3aef2e3b9c9c53:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-NetAddr-IP
 * [new ref]         6e70929b056af0da4ea14f199b3aef2e3b9c9c53 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6e70929 Remove dependency to Socket6, which we are going to remove