$ git clone -n https://src.fedoraproject.org/rpms/perl-Protocol-WebSocket.git /var/lib/mock/f45-build-25932-613/root/chroot_tmpdir/scmroot/perl-Protocol-WebSocket
Cloning into '/var/lib/mock/f45-build-25932-613/root/chroot_tmpdir/scmroot/perl-Protocol-WebSocket'...
$ git fetch origin 964eec3a69cf04cde8f1ef17783c1912bbbc82a8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Protocol-WebSocket
 * [new ref]         964eec3a69cf04cde8f1ef17783c1912bbbc82a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 964eec3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild