$ git clone -n https://src.fedoraproject.org/rpms/python-websockify.git /var/lib/mock/f45-build-33635-671/root/chroot_tmpdir/scmroot/python-websockify
Cloning into '/var/lib/mock/f45-build-33635-671/root/chroot_tmpdir/scmroot/python-websockify'...
$ git fetch origin b4e9f7176ae7804d9a8f7c8f16a64b551b0c5708:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-websockify
 * [new ref]         b4e9f7176ae7804d9a8f7c8f16a64b551b0c5708 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4e9f71 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild